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Unicellular organism

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1577:, with the parasitic ability to enter a cell. However, if the bacteria were capable of respiration, it would have been beneficial for the larger cell to allow the parasite to live in return for energy and detoxification of oxygen. Chloroplasts probably became symbionts through a similar set of events, and are most likely descendants of cyanobacteria. While not all eukaryotes have mitochondria or chloroplasts, mitochondria are found in most eukaryotes, and chloroplasts are found in all plants and algae. Photosynthesis and respiration are essentially the reverse of one another, and the advent of respiration coupled with photosynthesis enabled much greater access to energy than 1767: 1270: 40: 1590: 5334: 5344: 1357: 1261:, which is in contrast to eukaryotes, which typically have linear chromosomes. Nutritionally, prokaryotes have the ability to utilize a wide range of organic and inorganic material for use in metabolism, including sulfur, cellulose, ammonia, or nitrite. Prokaryotes are relatively ubiquitous in the environment and some (known as extremophiles) thrive in extreme environments. 1810:, unicellular algae that have siliceous cell walls. They are the most abundant form of algae in the ocean, although they can be found in fresh water as well. They account for about 40% of the world's primary marine production, and produce about 25% of the world's oxygen. Diatoms are very diverse, and comprise about 100,000 species. 1542:
Eukaryotic cells contain membrane bound organelles. Some examples include mitochondria, a nucleus, or the Golgi apparatus. Prokaryotic cells probably transitioned into eukaryotic cells between 2.0 and 1.4 billion years ago. This was an important step in evolution. In contrast to prokaryotes,
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growth. Archaea are generally similar in appearance to bacteria, hence their original classification as bacteria, but have significant molecular differences most notably in their membrane structure and ribosomal RNA. By sequencing the ribosomal RNA, it was found that the Archaea most likely split
1285:, which are short, circular, self-replicating DNA molecules that are separate from the bacterial chromosome. Plasmids can carry genes responsible for novel abilities, of current critical importance being antibiotic resistance. Bacteria predominantly reproduce asexually through a process called 1525:
are a significant subset of archaea and include many extremophiles, but are also ubiquitous in wetland environments as well as the ruminant and hindgut of animals. This process utilizes hydrogen to reduce carbon dioxide into methane, releasing energy into the usable form of
1233:, with the hydrophilic ends facing outwards. Primitive cells likely used self-assembling fatty-acid vesicles to separate chemical reactions and the environment. Because of their simplicity and ability to self-assemble in water, it is likely that these simple 119:, they are not specialised cells with differing functions. These organisms live together, and each cell must carry out all life processes to survive. In contrast, even the simplest multicellular organisms have cells that depend on each other to survive. 1320:
and trapped sediment left over from cyanobacteria and associated community bacteria, left behind extensive fossil records. The existence of stromatolites gives an excellent record as to the development of cyanobacteria, which are represented across the
1534:, some species of archaea aggregate and transfer DNA between cells. The function of this transfer appears to be to replace damaged DNA sequence information in the recipient cell by undamaged sequence information from the donor cell. 1570:
holds that mitochondria and chloroplasts have bacterial origins. Both organelles contain their own sets of DNA and have bacteria-like ribosomes. It is likely that modern mitochondria were once a species similar to
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Some archaea inhabit the most biologically inhospitable environments on earth, and this is believed to in some ways mimic the early, harsh conditions that life was likely exposed to. Examples of these Archaean
1719:, which are spear-like organelles that can be discharged to catch prey, anchor themselves, or for defense. Ciliates are also capable of sexual reproduction, and utilize two nuclei unique to ciliates: a 1653:
are capable of producing their energy using photosynthesis, while heterotrophic protozoa consume food by either funneling it through a mouth-like gullet or engulfing it with pseudopods, a form of
1615:. While there has been considerable debate on the classification of protozoa caused by their sheer diversity, in one system there are currently seven phyla recognized under the kingdom Protozoa: 2754:
Barton, Larry L.; Fardeau, Marie-Laure; Fauque, Guy D. (2014-01-01). "Hydrogen Sulfide: A Toxic Gas Produced by Dissimilatory Sulfate and Sulfur Reduction and Consumed by Microbial Oxidation".
1804:(green algae), mostly unicellular algae found in fresh water. The chlorophyta are of particular importance because they are believed to be most closely related to the evolution of land plants. 3363:
Ruggiero, Michael A.; Gordon, Dennis P.; Orrell, Thomas M.; Bailly, Nicolas; Bourgoin, Thierry; Brusca, Richard C.; Cavalier-Smith, Thomas; Guiry, Michael D.; Kirk, Paul M. (2015-04-29).
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Compartmentalization was necessary for chemical reactions to be more likely as well as to differentiate reactions with the external environment. For example, an early RNA replicator
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may have replicated other replicator ribozymes of different RNA sequences if not kept separate. Such hypothetic cells with an RNA genome instead of the usual DNA genome are called '
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from bacteria and were the precursors to modern eukaryotes, and are actually more phylogenetically related to eukaryotes. As their name suggests, Archaea comes from a Greek word
1715:. Ciliates are widely abundant in almost all environments where water can be found, and the cilia beat rhythmically in order to propel the organism. Many ciliates have 3521:
Sugibayashi, Rika; Harumoto, Terue (2000-12-29). "Defensive function of trichocysts in Paramecium tetraurelia against heterotrich ciliate Climacostomum virens".
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Johnston C, Martin B, Fichant G, Polard P, Claverys JP (2014). "Bacterial transformation: distribution, shared mechanisms and divergent control".
201: 4125: 3964: 5082: 4842: 4005: 3193: 2771: 2665: 2413: 2255: 4439: 1788:, flagellated, mostly unicellular algae that occur often in fresh water. In contrast to most other algae, they lack cell walls and can be 5165: 4085: 4827: 4487: 3913: 3446: 1945:, examples have been reported up to a centimetre thick with a surface area of over a square metre and weighed up to around 20 kg 1860:. Fungi are found in most habitats, although most are found on land. Yeasts reproduce through mitosis, and many use a process called 2926:
Falb, Michaela; Pfeiffer, Friedhelm; Palm, Peter; Rodewald, Karin; Hickmann, Volker; Tittor, Jörg; Oesterhelt, Dieter (2005-10-01).
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Bacteria are one of the world's oldest forms of life, and are found virtually everywhere in nature. Many common bacteria have
5272: 5139: 4919: 4663: 4365: 4254: 3935: 3574:"Entamoeba histolytica Dmc1 Catalyzes Homologous DNA Pairing and Strand Exchange That Is Stimulated by Calcium and Hop2-Mnd1" 2429: 968: 766: 4407: 1293:. Transformation is a bacterial process for transferring DNA from one cell to another, and is apparently an adaptation for 53:
with a diameter that ranges typically from 1 to 4 centimetres (0.4 to 1.6 in) is among the largest unicellular species
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is also an important model organism, since it is a eukaryotic organism that is easy to grow. It has been used to research
5277: 4779: 826: 5347: 4941: 2730: 1530:. They are the only known organisms capable of producing methane. Under stressful environmental conditions that cause 442: 194: 3788: 2300: 126:, for example, are reproductive unicells for multicellular organisms. Additionally, multicellularity appears to have 3743: 1333:(540 million years ago to present day) eons. Much of the fossilized stromatolites of the world can be found in 5043: 4217: 3572:
Kelso AA, Say AF, Sharma D, Ledford LL, Turchick A, Saski CA, King AV, Attaway CC, Temesvari LA, Sehorn MG (2015).
1563:. Metabolic functions in eukaryotes are more specialized as well by sectioning specific processes into organelles. 1337:. There, some of the oldest stromatolites have been found, some dating back to about 3,430 million years ago. 4837: 4634: 4444: 4212: 4105: 1957: 1883: 1348:, and is apparently due to the accumulation of damage that can happen even in the absence of external stressors. 1290: 1069: 786: 3007: 1912:, causing infections of the mouth and/or throat (known as thrush) and vagina (commonly called yeast infection). 1203:, early RNA molecules would have been the basis for catalyzing organic chemical reactions and self-replication. 5260: 5124: 5096: 5071: 5028: 4931: 4924: 4864: 4612: 4580: 4553: 4543: 3692: 3303: 2324:
Kleckner, Nancy; Fisher, Jay K.; Stouf, Mathieu; White, Martin A.; Bates, David; Witz, Guillaume (2014-12-01).
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repair of DNA damage and a greater range of genetic diversity by combining the DNA of the parents followed by
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are arguably the most successful bacteria, and changed the early atmosphere of the earth by oxygenating it.
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that likely employ meiotic recombination for repairing DNA damage acquired under stressful conditions.
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ferments carbohydrates into carbon dioxide and alcohol, and is used in the making of beer and bread.
127: 3842: 5282: 5240: 5190: 5109: 4957: 4949: 4879: 4859: 4805: 4739: 4649: 4402: 4345: 4207: 4190: 4168: 2087: 1647:. Protozoa, like plants and animals, can be considered heterotrophs or autotrophs. Autotrophs like 928: 887: 5343: 4021: 3666:"Algae – Biology Encyclopedia – cells, plant, body, human, organisms, cycle, life, used, specific" 3422: 5255: 5207: 5200: 4797: 4709: 4570: 4531: 4355: 4299: 4289: 4249: 4163: 4158: 4153: 4071: 3199: 2556: 2037: 1973: 1849: 1704: 1681: 1675: 1418: 1049: 948: 846: 45: 3789:"Microbiology Online | Microbiology Society | About Microbiology – Introducing microbes – Fungi" 3034: 2247: 1657:. While protozoa reproduce mainly asexually, some protozoa are capable of sexual reproduction. 5297: 5023: 4971: 4565: 4466: 4429: 4424: 4380: 4375: 4328: 4294: 4001: 3931: 3613: 3404: 3276: 3189: 3158: 3099: 3081: 2965: 2947: 2785: 2777: 2767: 2712: 2661: 2602: 2548: 2513: 2480:
Cui, Yanhua; Hu, Tong; Qu, Xiaojun; Zhang, Lanwei; Ding, Zhongqing; Dong, Aijun (2015-06-10).
2409: 2355: 2251: 2214: 2163: 2072: 2062: 2029: 1929: 1921: 1669: 1412: 1334: 1317: 1286: 3995: 2983: 2830: 1478:), prefer high pressure up to 130 MPa, such as deep ocean environments, including the genera 4889: 4456: 4434: 4242: 3603: 3593: 3530: 3394: 3384: 3266: 3256: 3181: 3148: 3138: 3089: 3071: 2955: 2939: 2902: 2759: 2702: 2694: 2592: 2540: 2503: 2493: 2345: 2337: 2204: 2194: 2153: 2005: 1937: 1905: 1794: 1365: 116: 3866: 2373: 1697:, or ciliates, are a group of protists that utilize cilia for locomotion. Examples include 1269: 5250: 4701: 4690: 4644: 4587: 4536: 4316: 4120: 2928:"Living with two extremes: Conclusions from the genome sequence of Natronomonas pharaonis" 1831: 1497: 1369: 1297:
damage in the recipient cell. In addition, plasmids can be exchanged through the use of a
1289:. However, about 80 different species can undergo a sexual process referred to as natural 1029: 530: 3589: 3380: 3252: 3134: 2803: 5090: 4962: 4264: 4259: 4197: 4175: 3950: 3720:"Diatoms are the most important group of photosynthetic eukaryotes – Site du Genoscope" 3608: 3573: 3399: 3364: 3271: 3236: 3153: 3118: 3094: 3059: 2960: 2927: 2707: 2682: 2508: 2481: 2402: 2350: 2325: 2240: 2209: 2182: 1813: 1589: 1277:
in Shark Bay, Western Australia. It can take a century for a stromatolite to grow 5 cm.
1196: 73: 39: 3534: 2482:"Plasmids from Food Lactic Acid Bacteria: Diversity, Similarity, and New Developments" 5362: 5292: 5170: 5129: 4975: 4869: 4744: 4729: 4397: 4392: 3761: 3470: 2890: 2623: 2092: 2067: 1982: 1948: 1925: 1640: 1567: 1480: 1430: 1309: 1253:. Instead, most prokaryotes have an irregular region that contains DNA, known as the 1246: 1234: 1110: 140: 3203: 2560: 1742:
The Amebozoa utilize pseudopodia and cytoplasmic flow to move in their environment.
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is largely still a mystery, in the currently prevailing theory, known as the
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that consists of multiple cells. Organisms fall into two general categories:
5309: 5160: 4904: 4724: 4387: 4135: 3639:"algae Facts, information, pictures | Encyclopedia.com articles about algae" 3497: 3261: 3143: 2854: 2681:Łapińska, U; Glover, G; Capilla-Lasheras, P; Young, AJ; Pagliara, S (2019). 2235: 2199: 1965: 1865: 1817: 1789: 1781:. They include groups that have both multicellular and unicellular species: 1624: 1620: 1604: 1552: 1508: 1493: 1471: 1211: 1200: 1192: 518: 458: 109: 3617: 3408: 3280: 3162: 3103: 2969: 2789: 2716: 2698: 2606: 2552: 2517: 2359: 2218: 2167: 1428:, optimum growth temperature of less than 15 °C, including the genera 3076: 2498: 5212: 4560: 4414: 3237:"Sex is a ubiquitous, ancient, and inherent attribute of eukaryotic life" 1997: 1821: 1785: 1658: 1644: 1632: 1600: 1345: 1254: 1207: 1090: 539: 521: 145: 97: 89: 69: 3928:
The myxomycetes of Britain and Ireland : an identification handbook
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Hook, Sarah E.; Wright, André-Denis G.; McBride, Brian W. (2010-01-01).
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The Metal-Driven Biogeochemistry of Gaseous Compounds in the Environment
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Bernstein, Harris; Bernstein, Carol; Michod, Richard E. (January 2018).
2544: 1820:. Dinoflagellates can be mixotrophic, and are the algae responsible for 1551:. Sex appears to be a ubiquitous and ancient, and inherent attribute of 4854: 4754: 4602: 4597: 4311: 4063: 3060:"Methanogens: methane producers of the rumen and mitigation strategies" 2943: 2242:
The Vital Question – Energy, Evolution, and the Origins of Complex Life
1901: 1861: 1755: 1694: 1649: 1548: 1544: 1322: 1282: 1226: 606: 573: 93: 2891:"Extremophiles: An Overview of Microorganism from Extreme Environment" 96:. Many eukaryotes are multicellular, but some are unicellular such as 1879: 1807: 1771: 1608: 1496:, grow optimally in high salt concentrations between 0.2 M and 5.2 M 1341: 583: 555: 123: 1896:
has played a central role in understanding the mechanism of meiotic
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organisms. Most prokaryotes are unicellular and are classified into
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International Journal of Agriculture, Environment and Biotechnology
2183:"Understanding "green" multicellularity: do seaweeds hold the key?" 1195:
were the precursors to today's unicellular organisms. Although the
4810: 4619: 4518: 2430:"Nature Fact Sheets – Stromatolites of Shark Bay » Shark Bay" 2181:
Coates, Juliet C.; Umm-E-Aiman; Charrier, Bénédicte (2015-01-01).
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Most multicellular organisms have a unicellular life-cycle stage.
105: 101: 2326:"The bacterial nucleoid: nature, dynamics and sister segregation" 1816:, unicellular flagellated algae, with some that are armored with 4769: 1978: 564: 50: 4067: 2758:. Metal Ions in Life Sciences. Vol. 14. pp. 237–277. 2017:
is the largest bacterium, reaching a length of up to 20 mm
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Gupta, G.N.; Srivastava, S.; Khare, S.K.; Prakash, V. (2014).
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A bottom-dwelling community found deep in the European Arctic.
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are largely defined by their method of locomotion, including
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are placed in water, the hydrophobic tails aggregate to form
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John Wesley Tunnell; Ernesto A. Chávez; Kim Withers (2007).
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van Wolferen M, Wagner A, van der Does C, Albers SV (2016).
1985:, can reach a diameter of 1 to 4 cm (0.4 to 2 in) 1555:
life. Meiosis, a true sexual process, allows for efficient
1446:, optimum growth pH of greater than 8, including the genus 3008:""Extremophiles: Archaea and Bacteria" : Map of Life" 2731:"NOAA Ocean Explorer: Arctic Exploration 2002: Background" 3951:
Researchers Identify Mysterious Life Forms in the Desert.
3891:"Candidiasis | Types of Diseases | Fungal Diseases | CDC" 2884: 2882: 2880: 2878: 2876: 2874: 1458:, optimum growth pH of less than 3, including the genera 2142:"Self-assembly and function of primitive cell membranes" 1777:
Unicellular algae are plant-like autotrophs and contain
3660: 3658: 3365:"A Higher Level Classification of All Living Organisms" 2683:"Bacterial ageing in the absence of external stressors" 4022:"What is the Largest Biological Cell? (with pictures)" 3812:
Alba-Lois, Luisa; Segal-Kischinevzky, Claudia (2010).
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achieving a diameter of up to 20 cm (7.9 in)
1928:. However, some unicellular protists and bacteria are 1727:
that undergoes meiosis. Examples of such ciliates are
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with sexual capability include the pathogenic species
1329:(2.5 billion to 540 million years ago), and 2574: 2572: 2570: 3814:"Yeast Fermentation and the Making of Beer and Wine" 1792:(both autotrophic and heterotrophic). An example is 1245:
Prokaryotes lack membrane-bound organelles, such as
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predated other forms of early biological molecules.
5228: 5153: 5057: 4984: 4940: 4795: 4699: 4516: 4475: 4344: 4134: 2332:. Growth and development: eukaryotes/ prokaryotes. 32: 2401: 2374:"Eukaryotic Chromosome Structure | Science Primer" 2239: 1847:Transmission electron microscope image of budding 112:possibly emerging 3.5–4.1 billion years ago. 3930:. Slough, England: Richmond Pub. Co. p. 4. 2618: 2616: 2395: 2393: 1932:and visible to the naked eye. Examples include: 1325:(4 billion to 2.5 billion years ago), 2140:Pohorille, Andrew; Deamer, David (2009-06-23). 133:Some organisms are partially unicellular, like 4040: 4038: 4000:. Texas A&M University Press. p. 91. 3748:Smithsonian National Museum of Natural History 4079: 3492: 3490: 3215: 3213: 2230: 2228: 195: 139:. Additionally, unicellular organisms can be 8: 3714: 3712: 3325:"Endosymbiosis and The Origin of Eukaryotes" 2009:, amoeba, 5 to 38 mm (0.2 to 1 in) 1723:for normal metabolic control and a separate 4047:"What Is the Largest Unicellular Organism?" 3029: 3027: 2825: 2823: 2649: 2647: 2645: 2643: 2486:International Journal of Molecular Sciences 2271: 2269: 2267: 2135: 2133: 2131: 1257:. Most prokaryotes have a single, circular 4086: 4072: 4064: 3997:Coral reefs of the southern Gulf of Mexico 3298: 3296: 3294: 3292: 3290: 3235:Speijer, D.; Lukeš, J.; Eliáš, M. (2015). 1770:A scanning electron microscope image of a 1368:, allowing extremophiles to survive using 202: 188: 3762:"BL Web: Growing dinoflagellates at home" 3607: 3597: 3398: 3388: 3270: 3260: 3152: 3142: 3093: 3075: 2959: 2706: 2596: 2507: 2497: 2475: 2473: 2349: 2208: 2198: 2157: 1377:meaning original, ancient, or primitive. 5320:Transgenerational epigenetic inheritance 3914:Max Planck Society Research News Release 3843:"Saccharomyces cerevisiae – MicrobeWiki" 3687: 3685: 2033:, ciliates nicknamed trumpet animalcules 1355: 3447:"Ciliophora: ciliates, move with cilia" 2408:. Salem Press Encyclopedia of Science. 2277:"Exploring Life's Origins: Fatty Acids" 2105: 1955:, are the largest examples known, with 27:Organism that consists of only one cell 3633: 3631: 3629: 3627: 3352:. Salem Press Encyclopedia of Science. 3224:. Salem Press Encyclopedia of Science. 29: 5083:Dialogues Concerning Natural Religion 3119:"The archaeal Ced system imports DNA" 1596:, a ciliate, with oral groove visible 7: 2624:"Fossil Record of the Cyanobacteria" 1364:Hydrothermal vents release heat and 1144: 1120: 1099: 1079: 1058: 1038: 1018: 997: 977: 957: 937: 917: 897: 876: 856: 835: 815: 795: 775: 755: 735: 715: 130:many times in the history of life. 4488:Evolutionary developmental biology 2687:Philos Trans R Soc Lond B Biol Sci 2001:, algae, may grow to 3 metres long 1920:Most unicellular organisms are of 1748:is the cause of amebic dysentery. 1316:, structures made up of layers of 115:Although some prokaryotes live in 25: 3744:"Algae Classification: DINOPHYTA" 2585:Infection, Genetics and Evolution 1916:Macroscopic unicellular organisms 5342: 5333: 5332: 3523:European Journal of Protistology 2654:McNamara, Kenneth (2009-09-01). 1924:size and are thus classified as 38: 5145:Extended evolutionary synthesis 4334:Gene-centered view of evolution 4045:Anne Helmenstine (2018-11-29). 3176:Witzany, Guenther, ed. (2017). 2330:Current Opinion in Microbiology 5273:Hologenome theory of evolution 5140:History of molecular evolution 4366:Evolutionarily stable strategy 4255:Last universal common ancestor 2907:10.5958/2230-732X.2014.00258.7 1890:. Furthermore, research using 1856:Unicellular fungi include the 1543:eukaryotes reproduce by using 1: 5067:Renaissance and Enlightenment 3963:Bauer, Becky (October 2008). 3793:www.microbiologyonline.org.uk 3535:10.1016/S0932-4739(00)80047-4 3471:"Introduction to the Ciliata" 3451:www.microscope-microscope.org 2660:. Western Australian Museum. 2041:, largest colpodean ciliates. 1900:and the adaptive function of 1886:as well as to understand the 1824:. Some dinoflagellates, like 5278:Missing heritability problem 4905:Gamete differentiation/sexes 3599:10.1371/journal.pone.0139399 3390:10.1371/journal.pone.0119248 3241:Proc. Natl. Acad. Sci. U.S.A 3123:Proc. Natl. Acad. Sci. U.S.A 2764:10.1007/978-94-017-9269-1_10 2598:10.1016/j.meegid.2017.10.024 2581:"Sex in microbial pathogens" 2159:10.1016/j.resmic.2009.06.004 1868:is held by the mother cell. 3178:Biocommunication of Archaea 2454:"Conjugation (prokaryotes)" 1951:, protozoans of the phylum 929:Earliest multicellular life 5385: 4910:Life cycles/nuclear phases 4462:Trivers–Willard hypothesis 4024:. Wisegeek.com. 2014-02-23 3549:"amoeba | protozoan order" 2187:Frontiers in Plant Science 1884:neurodegenerative diseases 72:that consists of a single 5328: 4408:Parent–offspring conflict 4213:Earliest known life forms 4101: 3965:"Gazing Balls in the Sea" 3186:10.1007/978-3-319-65536-9 2342:10.1016/j.mib.2014.10.001 1958:Syringammina fragilissima 1754:appears to be capable of 1168: 180: 169: 37: 5261:Cultural group selection 5125:The eclipse of Darwinism 5097:On the Origin of Species 5072:Transmutation of species 3867:"Using yeast in biology" 3670:www.biologyreference.com 3348:Klose, Robert T (2015). 3304:"Origin of Mitochondria" 2400:Smith, Dwight G (2015). 2305:webprojects.oit.ncsu.edu 2146:Research in Microbiology 2115:An Introduction to Cells 2068:Individuality in biology 1871:Saccharomyces cerevisiae 355:−1000 — 335:−1500 — 315:−2000 — 295:−2500 — 275:−3000 — 255:−3500 — 235:−4000 — 215:−4500 — 136:Dictyostelium discoideum 5266:Dual inheritance theory 5105:History of paleontology 3553:Encyclopedia Britannica 3502:Encyclopedia Britannica 3262:10.1073/pnas.1501725112 3144:10.1073/pnas.1513740113 2859:Encyclopedia Britannica 2200:10.3389/fpls.2014.00737 2022:Epulopiscium fishelsoni 2014:Thiomargarita magnifica 1500:, including the genera 375:−500 — 163:Evolutionary hypothesis 4954:Punctuated equilibrium 4275:Non-adaptive radiation 4223:Evolutionary arms race 3693:"siliceous cell walls" 2855:"archaea | prokaryote" 2735:oceanexplorer.noaa.gov 2699:10.1098/rstb.2018.0442 2083:Multicellular organism 1908:. are responsible for 1853: 1774: 1597: 1594:Paramecium tetraurelia 1528:adenosine triphosphate 1361: 1301:in a process known as 1291:genetic transformation 1278: 78:multicellular organism 66:single-celled organism 5246:Evolutionary medicine 5120:Mendelian inheritance 4828:Biological complexity 4816:Programmed cell death 4508:Phenotypic plasticity 4228:Evolutionary pressure 4218:Evidence of evolution 4116:Timeline of evolution 3498:"ciliate | protozoan" 3475:www.ucmp.berkeley.edu 3220:Yett, Jay R. (2015). 2628:www.ucmp.berkeley.edu 2499:10.3390/ijms160613172 2246:. WW Norton. p.  2078:Modularity in biology 1846: 1827:Pyrocystis fusiformis 1769: 1751:Entamoeba histolytica 1745:Entamoeba histolytica 1664:Plasmodium falciparum 1592: 1359: 1272: 128:evolved independently 5220:Teleology in biology 5115:Blending inheritance 4493:Genetic assimilation 4356:Artificial selection 4095:Evolutionary biology 3975:on 17 September 2010 3953:Accessed 2011-10-24. 3916:Accessed 21 May 2009 3766:biolum.eemb.ucsb.edu 3724:www.genoscope.cns.fr 3643:www.encyclopedia.com 3427:www.microbeworld.org 2831:"Archaeal Ribosomes" 2808:www.microbeworld.org 2281:exploringorigins.org 2058:Asexual reproduction 1864:, where most of the 1568:endosymbiotic theory 1344:occurs naturally in 1201:RNA world hypothesis 62:unicellular organism 33:Unicellular organism 5283:Molecular evolution 5241:Ecological genetics 5110:Transitional fossil 4900:Sexual reproduction 4740:endomembrane system 4669:pollinator-mediated 4625:dolphins and whales 4403:Parental investment 3926:Ing, Bruce (1999). 3590:2015PLoSO..1039399K 3381:2015PLoSO..1019248R 3253:2015PNAS..112.8827S 3135:2016PNAS..113.2496V 3077:10.1155/2010/945785 2545:10.1038/nrmicro3199 2533:Nat. Rev. Microbiol 2434:www.sharkbay.org.au 2088:Sexual reproduction 1308:The photosynthetic 909:Sexual reproduction 888:Huronian glaciation 5256:Cultural evolution 4371:Fisher's principle 4300:Handicap principle 4290:Parallel evolution 4154:Adaptive radiation 4049:. sciencenotes.org 3871:www.yourgenome.org 2944:10.1101/gr.3952905 2693:(1786): 20180442. 2492:(6): 13172–13202. 1974:Valonia ventricosa 1854: 1850:Ogataea polymorpha 1775: 1682:Giardia duodenalis 1676:Trypanosoma brucei 1598: 1362: 1279: 1214:' or 'ribocytes'. 1156:Quaternary ice age 1091:Earliest tetrapods 1050:Cambrian explosion 1009:Cryogenian ice age 868:Atmospheric oxygen 847:Pongola glaciation 475:Multicellular life 427:Single-celled life 104:, and unicellular 64:, also known as a 46:Valonia ventricosa 5356: 5355: 4972:Uniformitarianism 4925:Sex-determination 4430:Sexual dimorphism 4425:Natural selection 4329:Unit of selection 4295:Signalling theory 4007:978-1-58544-617-9 3195:978-3-319-65535-2 3012:www.mapoflife.org 2938:(10): 1336–1343. 2773:978-94-017-9268-4 2667:978-1-920843-88-5 2415:978-1-58765-084-0 2378:scienceprimer.com 2257:978-0-393-08881-6 2073:Largest organisms 2063:Colonial organism 1839:Unicellular fungi 1830:, are capable of 1762:Unicellular algae 1670:Toxoplasma gondii 1474:, (also known as 1413:Thermus aquaticus 1370:chemolithotrophic 1335:Western Australia 1318:calcium carbonate 1189: 1188: 1173:million years ago 1164: 1163: 1143: 1142: 1119: 1118: 1098: 1097: 1078: 1077: 1070:Andean glaciation 1057: 1056: 1037: 1036: 1017: 1016: 996: 995: 976: 975: 956: 955: 936: 935: 916: 915: 896: 895: 875: 874: 855: 854: 834: 833: 814: 813: 794: 793: 774: 773: 754: 753: 734: 733: 58: 57: 16:(Redirected from 5376: 5346: 5336: 5335: 5135:Modern synthesis 4895:Multicellularity 4890:Mosaic evolution 4775:auditory ossicle 4457:Social selection 4440:Flowering plants 4435:Sexual selection 4088: 4081: 4074: 4065: 4058: 4057: 4055: 4054: 4042: 4033: 4032: 4030: 4029: 4018: 4012: 4011: 3991: 3985: 3984: 3982: 3980: 3971:. Archived from 3960: 3954: 3948: 3942: 3941: 3923: 3917: 3911: 3905: 3904: 3902: 3901: 3887: 3881: 3880: 3878: 3877: 3863: 3857: 3856: 3854: 3853: 3839: 3833: 3832: 3830: 3829: 3818:Nature Education 3809: 3803: 3802: 3800: 3799: 3785: 3776: 3775: 3773: 3772: 3758: 3752: 3751: 3740: 3734: 3733: 3731: 3730: 3716: 3707: 3706: 3704: 3703: 3689: 3680: 3679: 3677: 3676: 3662: 3653: 3652: 3650: 3649: 3635: 3622: 3621: 3611: 3601: 3569: 3563: 3562: 3560: 3559: 3545: 3539: 3538: 3518: 3512: 3511: 3509: 3508: 3494: 3485: 3484: 3482: 3481: 3467: 3461: 3460: 3458: 3457: 3443: 3437: 3436: 3434: 3433: 3419: 3413: 3412: 3402: 3392: 3360: 3354: 3353: 3345: 3339: 3338: 3336: 3335: 3321: 3315: 3314: 3312: 3311: 3300: 3285: 3284: 3274: 3264: 3232: 3226: 3225: 3217: 3208: 3207: 3173: 3167: 3166: 3156: 3146: 3114: 3108: 3107: 3097: 3079: 3055: 3049: 3048: 3046: 3045: 3039:www.vet.ed.ac.uk 3031: 3022: 3021: 3019: 3018: 3004: 2998: 2997: 2995: 2994: 2980: 2974: 2973: 2963: 2923: 2917: 2916: 2914: 2913: 2886: 2869: 2868: 2866: 2865: 2851: 2845: 2844: 2842: 2841: 2827: 2818: 2817: 2815: 2814: 2800: 2794: 2793: 2751: 2745: 2744: 2742: 2741: 2727: 2721: 2720: 2710: 2678: 2672: 2671: 2651: 2638: 2637: 2635: 2634: 2620: 2611: 2610: 2600: 2576: 2565: 2564: 2528: 2522: 2521: 2511: 2501: 2477: 2468: 2467: 2465: 2464: 2450: 2444: 2443: 2441: 2440: 2426: 2420: 2419: 2407: 2397: 2388: 2387: 2385: 2384: 2370: 2364: 2363: 2353: 2321: 2315: 2314: 2312: 2311: 2297: 2291: 2290: 2288: 2287: 2273: 2262: 2261: 2245: 2232: 2223: 2222: 2212: 2202: 2178: 2172: 2171: 2161: 2137: 2126: 2125: 2124: 2123: 2110: 2006:Gromia sphaerica 1969:, foraminiferans 1938:Brefeldia maxima 1795:Euglena gracilis 1385:are as follows: 1366:hydrogen sulfide 1150: 1145: 1126: 1121: 1105: 1100: 1085: 1080: 1064: 1059: 1044: 1039: 1024: 1019: 1003: 998: 989:Earliest animals 983: 978: 963: 958: 943: 938: 923: 918: 903: 898: 882: 877: 862: 857: 841: 836: 821: 816: 801: 796: 787:Earliest fossils 781: 776: 761: 756: 741: 736: 721: 716: 695: 664: 626: 624: 598: 596: 503: 396: 391: 386: 381: 376: 371: 366: 361: 356: 351: 346: 341: 336: 331: 326: 321: 316: 311: 306: 301: 296: 291: 286: 281: 276: 271: 266: 261: 256: 251: 246: 241: 236: 231: 226: 221: 216: 204: 197: 190: 184: 174: 167: 42: 30: 21: 5384: 5383: 5379: 5378: 5377: 5375: 5374: 5373: 5359: 5358: 5357: 5352: 5324: 5251:Group selection 5224: 5149: 5053: 4980: 4942:Tempo and modes 4936: 4791: 4695: 4512: 4471: 4347: 4340: 4317:Species complex 4130: 4121:History of life 4097: 4092: 4062: 4061: 4052: 4050: 4044: 4043: 4036: 4027: 4025: 4020: 4019: 4015: 4008: 3993: 3992: 3988: 3978: 3976: 3962: 3961: 3957: 3949: 3945: 3938: 3925: 3924: 3920: 3912: 3908: 3899: 3897: 3889: 3888: 3884: 3875: 3873: 3865: 3864: 3860: 3851: 3849: 3841: 3840: 3836: 3827: 3825: 3811: 3810: 3806: 3797: 3795: 3787: 3786: 3779: 3770: 3768: 3760: 3759: 3755: 3742: 3741: 3737: 3728: 3726: 3718: 3717: 3710: 3701: 3699: 3691: 3690: 3683: 3674: 3672: 3664: 3663: 3656: 3647: 3645: 3637: 3636: 3625: 3584:(9): e0139399. 3571: 3570: 3566: 3557: 3555: 3547: 3546: 3542: 3520: 3519: 3515: 3506: 3504: 3496: 3495: 3488: 3479: 3477: 3469: 3468: 3464: 3455: 3453: 3445: 3444: 3440: 3431: 3429: 3421: 3420: 3416: 3375:(4): e0119248. 3362: 3361: 3357: 3347: 3346: 3342: 3333: 3331: 3323: 3322: 3318: 3309: 3307: 3302: 3301: 3288: 3247:(29): 8827–34. 3234: 3233: 3229: 3219: 3218: 3211: 3196: 3175: 3174: 3170: 3129:(9): 2496–501. 3116: 3115: 3111: 3057: 3056: 3052: 3043: 3041: 3033: 3032: 3025: 3016: 3014: 3006: 3005: 3001: 2992: 2990: 2982: 2981: 2977: 2932:Genome Research 2925: 2924: 2920: 2911: 2909: 2888: 2887: 2872: 2863: 2861: 2853: 2852: 2848: 2839: 2837: 2829: 2828: 2821: 2812: 2810: 2802: 2801: 2797: 2774: 2753: 2752: 2748: 2739: 2737: 2729: 2728: 2724: 2680: 2679: 2675: 2668: 2653: 2652: 2641: 2632: 2630: 2622: 2621: 2614: 2578: 2577: 2568: 2530: 2529: 2525: 2479: 2478: 2471: 2462: 2460: 2452: 2451: 2447: 2438: 2436: 2428: 2427: 2423: 2416: 2399: 2398: 2391: 2382: 2380: 2372: 2371: 2367: 2323: 2322: 2318: 2309: 2307: 2299: 2298: 2294: 2285: 2283: 2275: 2274: 2265: 2258: 2234: 2233: 2226: 2180: 2179: 2175: 2139: 2138: 2129: 2121: 2119: 2112: 2111: 2107: 2102: 2097: 2048: 1918: 1841: 1832:bioluminescence 1814:Dinoflagellates 1764: 1587: 1557:recombinational 1540: 1354: 1267: 1243: 1185: 1184: 1176: 1160: 1159: 1148: 1139: 1138: 1124: 1115: 1114: 1103: 1094: 1093: 1083: 1074: 1073: 1062: 1053: 1052: 1042: 1033: 1032: 1030:Ediacaran biota 1022: 1013: 1012: 1001: 992: 991: 981: 972: 971: 969:Earliest plants 961: 952: 951: 941: 932: 931: 921: 912: 911: 901: 892: 891: 880: 871: 870: 860: 851: 850: 839: 830: 829: 827:Earliest oxygen 819: 810: 809: 799: 790: 789: 779: 770: 769: 759: 750: 749: 739: 730: 729: 719: 712: 711: 710: 705: 704: 703: 698: 697: 696: 692: 690: 688: 686: 684: 682: 680: 678: 676: 674: 671: 667: 666: 665: 661: 659: 657: 655: 653: 651: 649: 647: 645: 643: 641: 640: 639: 638: 637: 636: 635: 633: 629: 628: 627: 622: 620: 618: 616: 614: 612: 610: 609: 608: 607: 605: 601: 600: 599: 594: 592: 590: 588: 586: 584: 582: 578: 577: 576: 569: 568: 567: 560: 559: 558: 551: 550: 549: 544: 543: 542: 535: 534: 533: 526: 525: 524: 514: 513: 512: 507: 506: 505: 501: 499: 497: 495: 493: 491: 486: 485: 484: 479: 478: 477: 470: 469: 468: 463: 462: 461: 454: 453: 452: 447: 446: 445: 438: 437: 436: 431: 430: 429: 422: 421: 420: 415: 414: 413: 406: 405: 404: 397: 394: 392: 389: 387: 384: 382: 379: 377: 374: 372: 369: 367: 364: 362: 359: 357: 354: 352: 349: 347: 344: 342: 339: 337: 334: 332: 329: 327: 324: 322: 319: 317: 314: 312: 309: 307: 304: 302: 299: 297: 294: 292: 289: 287: 284: 282: 279: 277: 274: 272: 269: 267: 264: 262: 259: 257: 254: 252: 249: 247: 244: 242: 239: 237: 234: 232: 229: 227: 224: 222: 219: 217: 214: 208: 182: 176: 172: 165: 54: 49:, a species of 28: 23: 22: 15: 12: 11: 5: 5382: 5380: 5372: 5371: 5369:Microorganisms 5361: 5360: 5354: 5353: 5351: 5350: 5340: 5329: 5326: 5325: 5323: 5322: 5317: 5312: 5307: 5302: 5301: 5300: 5290: 5285: 5280: 5275: 5270: 5269: 5268: 5263: 5258: 5248: 5243: 5238: 5232: 5230: 5226: 5225: 5223: 5222: 5217: 5216: 5215: 5210: 5205: 5204: 5203: 5193: 5188: 5183: 5178: 5173: 5163: 5157: 5155: 5151: 5150: 5148: 5147: 5142: 5137: 5132: 5127: 5122: 5117: 5112: 5107: 5102: 5101: 5100: 5091:Charles Darwin 5088: 5087: 5086: 5074: 5069: 5063: 5061: 5055: 5054: 5052: 5051: 5046: 5041: 5036: 5031: 5029:Non-ecological 5026: 5021: 5016: 5011: 5006: 5001: 4996: 4990: 4988: 4982: 4981: 4979: 4978: 4969: 4960: 4946: 4944: 4938: 4937: 4935: 4934: 4929: 4928: 4927: 4922: 4917: 4912: 4907: 4897: 4892: 4887: 4882: 4877: 4872: 4867: 4862: 4857: 4852: 4847: 4846: 4845: 4835: 4830: 4825: 4820: 4819: 4818: 4813: 4802: 4800: 4793: 4792: 4790: 4789: 4788: 4787: 4782: 4780:nervous system 4777: 4772: 4767: 4759: 4758: 4757: 4752: 4747: 4742: 4737: 4732: 4722: 4717: 4712: 4706: 4704: 4697: 4696: 4694: 4693: 4688: 4683: 4678: 4673: 4672: 4671: 4661: 4660: 4659: 4654: 4653: 4652: 4647: 4637: 4632: 4627: 4622: 4617: 4616: 4615: 4610: 4600: 4590: 4585: 4584: 4583: 4573: 4568: 4563: 4558: 4557: 4556: 4546: 4541: 4540: 4539: 4529: 4523: 4521: 4514: 4513: 4511: 4510: 4505: 4500: 4495: 4490: 4485: 4479: 4477: 4473: 4472: 4470: 4469: 4464: 4459: 4454: 4453: 4452: 4447: 4442: 4432: 4427: 4422: 4417: 4412: 4411: 4410: 4405: 4395: 4390: 4385: 4384: 4383: 4373: 4368: 4363: 4358: 4352: 4350: 4342: 4341: 4339: 4338: 4337: 4336: 4326: 4321: 4320: 4319: 4314: 4304: 4303: 4302: 4292: 4287: 4282: 4280:Origin of life 4277: 4272: 4267: 4265:Microevolution 4262: 4260:Macroevolution 4257: 4252: 4247: 4246: 4245: 4235: 4230: 4225: 4220: 4215: 4210: 4205: 4200: 4198:Common descent 4195: 4194: 4193: 4183: 4178: 4176:Baldwin effect 4173: 4172: 4171: 4166: 4156: 4151: 4146: 4140: 4138: 4132: 4131: 4129: 4128: 4123: 4118: 4113: 4108: 4102: 4099: 4098: 4093: 4091: 4090: 4083: 4076: 4068: 4060: 4059: 4034: 4013: 4006: 3986: 3955: 3943: 3936: 3918: 3906: 3882: 3858: 3834: 3804: 3777: 3753: 3735: 3708: 3681: 3654: 3623: 3564: 3540: 3529:(4): 415–422. 3513: 3486: 3462: 3438: 3414: 3355: 3340: 3316: 3286: 3227: 3209: 3194: 3168: 3109: 3050: 3023: 2999: 2975: 2918: 2870: 2846: 2819: 2795: 2772: 2746: 2722: 2673: 2666: 2639: 2612: 2566: 2523: 2469: 2458:www.nature.com 2445: 2421: 2414: 2389: 2365: 2316: 2292: 2263: 2256: 2224: 2173: 2152:(7): 449–456. 2127: 2104: 2103: 2101: 2098: 2096: 2095: 2090: 2085: 2080: 2075: 2070: 2065: 2060: 2055: 2049: 2047: 2044: 2043: 2042: 2034: 2026: 2018: 2010: 2002: 1994: 1986: 1970: 1962: 1949:Xenophyophores 1946: 1926:microorganisms 1917: 1914: 1840: 1837: 1836: 1835: 1811: 1805: 1799: 1763: 1760: 1629:Cavalier-Smith 1586: 1583: 1539: 1536: 1520: 1519: 1491: 1469: 1453: 1441: 1423: 1353: 1350: 1287:binary fission 1266: 1263: 1242: 1239: 1197:origin of life 1187: 1186: 1177: 1170: 1169: 1166: 1165: 1162: 1161: 1154: 1153: 1151: 1141: 1140: 1130: 1129: 1127: 1117: 1116: 1109: 1108: 1106: 1096: 1095: 1089: 1088: 1086: 1076: 1075: 1068: 1067: 1065: 1055: 1054: 1048: 1047: 1045: 1035: 1034: 1028: 1027: 1025: 1015: 1014: 1007: 1006: 1004: 994: 993: 987: 986: 984: 974: 973: 967: 966: 964: 954: 953: 949:Earliest fungi 947: 946: 944: 934: 933: 927: 926: 924: 914: 913: 907: 906: 904: 894: 893: 886: 885: 883: 873: 872: 866: 865: 863: 853: 852: 845: 844: 842: 832: 831: 825: 824: 822: 812: 811: 807:LHB meteorites 805: 804: 802: 792: 791: 785: 784: 782: 772: 771: 765: 764: 762: 752: 751: 747:Earliest water 745: 744: 742: 732: 731: 725: 724: 722: 713: 708: 707: 706: 701: 700: 699: 670: 669: 668: 632: 631: 630: 604: 603: 602: 581: 580: 579: 572: 571: 570: 563: 562: 561: 554: 553: 552: 547: 546: 545: 538: 537: 536: 529: 528: 527: 517: 516: 515: 510: 509: 508: 489: 488: 487: 482: 481: 480: 473: 472: 471: 466: 465: 464: 457: 456: 455: 450: 449: 448: 443:Photosynthesis 441: 440: 439: 434: 433: 432: 425: 424: 423: 418: 417: 416: 409: 408: 407: 402: 401: 400: 398: 395:0 — 393: 388: 383: 378: 373: 368: 363: 358: 353: 348: 343: 338: 333: 328: 323: 318: 313: 308: 303: 298: 293: 288: 283: 278: 273: 268: 263: 258: 253: 248: 243: 238: 233: 228: 223: 218: 213: 210: 209: 207: 206: 199: 192: 181: 178: 177: 170: 164: 161: 100:, unicellular 84:organisms and 56: 55: 43: 35: 34: 26: 24: 18:Unicellularity 14: 13: 10: 9: 6: 4: 3: 2: 5381: 5370: 5367: 5366: 5364: 5349: 5345: 5341: 5339: 5331: 5330: 5327: 5321: 5318: 5316: 5313: 5311: 5308: 5306: 5303: 5299: 5296: 5295: 5294: 5293:Phylogenetics 5291: 5289: 5286: 5284: 5281: 5279: 5276: 5274: 5271: 5267: 5264: 5262: 5259: 5257: 5254: 5253: 5252: 5249: 5247: 5244: 5242: 5239: 5237: 5234: 5233: 5231: 5227: 5221: 5218: 5214: 5211: 5209: 5206: 5202: 5199: 5198: 5197: 5196:Structuralism 5194: 5192: 5189: 5187: 5184: 5182: 5179: 5177: 5174: 5172: 5171:Catastrophism 5169: 5168: 5167: 5164: 5162: 5159: 5158: 5156: 5152: 5146: 5143: 5141: 5138: 5136: 5133: 5131: 5130:Neo-Darwinism 5128: 5126: 5123: 5121: 5118: 5116: 5113: 5111: 5108: 5106: 5103: 5099: 5098: 5094: 5093: 5092: 5089: 5085: 5084: 5080: 5079: 5078: 5075: 5073: 5070: 5068: 5065: 5064: 5062: 5060: 5056: 5050: 5047: 5045: 5044:Reinforcement 5042: 5040: 5037: 5035: 5032: 5030: 5027: 5025: 5022: 5020: 5017: 5015: 5012: 5010: 5007: 5005: 5002: 5000: 4997: 4995: 4992: 4991: 4989: 4987: 4983: 4977: 4976:Catastrophism 4973: 4970: 4968: 4967:Macromutation 4964: 4963:Micromutation 4961: 4959: 4955: 4951: 4948: 4947: 4945: 4943: 4939: 4933: 4930: 4926: 4923: 4921: 4918: 4916: 4913: 4911: 4908: 4906: 4903: 4902: 4901: 4898: 4896: 4893: 4891: 4888: 4886: 4883: 4881: 4878: 4876: 4873: 4871: 4870:Immune system 4868: 4866: 4863: 4861: 4858: 4856: 4853: 4851: 4848: 4844: 4841: 4840: 4839: 4836: 4834: 4831: 4829: 4826: 4824: 4821: 4817: 4814: 4812: 4809: 4808: 4807: 4804: 4803: 4801: 4799: 4794: 4786: 4783: 4781: 4778: 4776: 4773: 4771: 4768: 4766: 4763: 4762: 4760: 4756: 4753: 4751: 4748: 4746: 4743: 4741: 4738: 4736: 4733: 4731: 4730:symbiogenesis 4728: 4727: 4726: 4723: 4721: 4718: 4716: 4713: 4711: 4708: 4707: 4705: 4703: 4698: 4692: 4689: 4687: 4684: 4682: 4679: 4677: 4674: 4670: 4667: 4666: 4665: 4662: 4658: 4655: 4651: 4648: 4646: 4643: 4642: 4641: 4638: 4636: 4633: 4631: 4628: 4626: 4623: 4621: 4618: 4614: 4611: 4609: 4606: 4605: 4604: 4601: 4599: 4596: 4595: 4594: 4591: 4589: 4586: 4582: 4579: 4578: 4577: 4574: 4572: 4569: 4567: 4564: 4562: 4559: 4555: 4552: 4551: 4550: 4547: 4545: 4542: 4538: 4535: 4534: 4533: 4530: 4528: 4525: 4524: 4522: 4520: 4515: 4509: 4506: 4504: 4501: 4499: 4496: 4494: 4491: 4489: 4486: 4484: 4481: 4480: 4478: 4474: 4468: 4465: 4463: 4460: 4458: 4455: 4451: 4448: 4446: 4443: 4441: 4438: 4437: 4436: 4433: 4431: 4428: 4426: 4423: 4421: 4418: 4416: 4413: 4409: 4406: 4404: 4401: 4400: 4399: 4398:Kin selection 4396: 4394: 4393:Genetic drift 4391: 4389: 4386: 4382: 4379: 4378: 4377: 4374: 4372: 4369: 4367: 4364: 4362: 4359: 4357: 4354: 4353: 4351: 4349: 4343: 4335: 4332: 4331: 4330: 4327: 4325: 4322: 4318: 4315: 4313: 4310: 4309: 4308: 4305: 4301: 4298: 4297: 4296: 4293: 4291: 4288: 4286: 4283: 4281: 4278: 4276: 4273: 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2099: 2094: 2093:Superorganism 2091: 2089: 2086: 2084: 2081: 2079: 2076: 2074: 2071: 2069: 2066: 2064: 2061: 2059: 2056: 2054: 2051: 2050: 2045: 2040: 2039: 2035: 2032: 2031: 2027: 2025:, a bacterium 2024: 2023: 2019: 2016: 2015: 2011: 2008: 2007: 2003: 2000: 1999: 1995: 1992: 1991: 1987: 1984: 1983:Chlorophyceae 1981:of the class 1980: 1976: 1975: 1971: 1968: 1967: 1963: 1960: 1959: 1954: 1950: 1947: 1944: 1940: 1939: 1935: 1934: 1933: 1931: 1927: 1923: 1915: 1913: 1911: 1907: 1903: 1899: 1898:recombination 1895: 1894: 1893:S. cerevisiae 1889: 1885: 1881: 1877: 1876:S. cerevisiae 1873: 1872: 1867: 1863: 1859: 1852: 1851: 1845: 1838: 1833: 1829: 1828: 1823: 1819: 1815: 1812: 1809: 1806: 1803: 1800: 1797: 1796: 1791: 1787: 1784: 1783: 1782: 1780: 1773: 1768: 1761: 1759: 1757: 1753: 1752: 1747: 1746: 1740: 1738: 1737: 1732: 1731: 1726: 1722: 1718: 1714: 1713: 1708: 1707: 1702: 1701: 1696: 1692: 1690: 1689: 1684: 1683: 1678: 1677: 1672: 1671: 1666: 1665: 1660: 1656: 1652: 1651: 1646: 1642: 1641:Microsporidia 1638: 1634: 1630: 1628: 1622: 1618: 1614: 1610: 1606: 1602: 1595: 1591: 1584: 1582: 1580: 1576: 1575: 1569: 1564: 1562: 1561:recombination 1558: 1554: 1550: 1546: 1537: 1535: 1533: 1529: 1524: 1517: 1516: 1511: 1510: 1505: 1504: 1499: 1495: 1492: 1489: 1488: 1483: 1482: 1481:Methanococcus 1477: 1473: 1470: 1467: 1466: 1462: 1457: 1454: 1451: 1450: 1445: 1442: 1440: 1438: 1433: 1432: 1431:Methanogenium 1427: 1426:Psychrophiles 1424: 1422: 1420: 1415: 1414: 1409: 1408: 1403: 1402: 1397: 1396: 1391: 1388: 1387: 1386: 1384: 1383:extremophiles 1378: 1376: 1371: 1367: 1358: 1351: 1349: 1347: 1343: 1338: 1336: 1332: 1328: 1324: 1319: 1315: 1314:Stromatolites 1311: 1310:cyanobacteria 1306: 1304: 1300: 1296: 1295:repairing DNA 1292: 1288: 1284: 1276: 1275:stromatolites 1271: 1264: 1262: 1260: 1256: 1252: 1248: 1240: 1238: 1236: 1232: 1228: 1224: 1220: 1215: 1213: 1209: 1204: 1202: 1198: 1194: 1183: 1182: 1174: 1167: 1157: 1152: 1147: 1146: 1137: 1133: 1132:Earliest apes 1128: 1123: 1122: 1112: 1111:Karoo ice age 1107: 1102: 1101: 1092: 1087: 1082: 1081: 1071: 1066: 1061: 1060: 1051: 1046: 1041: 1040: 1031: 1026: 1021: 1020: 1010: 1005: 1000: 999: 990: 985: 980: 979: 970: 965: 960: 959: 950: 945: 940: 939: 930: 925: 920: 919: 910: 905: 900: 899: 889: 884: 879: 878: 869: 864: 859: 858: 848: 843: 838: 837: 828: 823: 818: 817: 808: 803: 798: 797: 788: 783: 778: 777: 768: 763: 758: 757: 748: 743: 738: 737: 728: 723: 718: 717: 714: 694: 663: 625: 597: 575: 566: 557: 541: 532: 523: 520: 504: 476: 460: 444: 428: 412: 399: 212: 211: 205: 200: 198: 193: 191: 186: 185: 179: 175: 173:Life timeline 168: 162: 160: 158: 154: 153: 148: 147: 142: 141:multinucleate 138: 137: 131: 129: 125: 120: 118: 113: 111: 107: 103: 99: 95: 91: 87: 83: 79: 75: 71: 67: 63: 52: 48: 47: 41: 36: 31: 19: 5305:Polymorphism 5288:Astrobiology 5236:Biogeography 5191:Saltationism 5181:Orthogenesis 5166:Alternatives 5095: 5081: 5014:Cospeciation 5009:Cladogenesis 4958:Saltationism 4915:Mating types 4838:Color vision 4823:Avian flight 4745:mitochondria 4483:Canalisation 4361:Biodiversity 4106:Introduction 4051:. 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Retrieved 2280: 2241: 2190: 2186: 2176: 2149: 2145: 2120:, retrieved 2118:, ThinkQuest 2114: 2108: 2036: 2028: 2020: 2012: 2004: 1996: 1990:Acetabularia 1988: 1972: 1964: 1956: 1953:Foraminifera 1936: 1919: 1891: 1875: 1869: 1855: 1848: 1825: 1793: 1786:Euglenophyta 1776: 1749: 1743: 1741: 1734: 1728: 1725:micronucleus 1721:macronucleus 1710: 1705: 1698: 1693: 1686: 1680: 1674: 1668: 1662: 1655:phagocytosis 1648: 1626: 1599: 1593: 1579:fermentation 1572: 1565: 1541: 1521: 1513: 1507: 1501: 1485: 1479: 1459: 1449:Natronomonas 1447: 1444:Alkaliphiles 1435: 1429: 1417: 1411: 1405: 1399: 1393: 1390:Thermophiles 1379: 1374: 1363: 1339: 1307: 1280: 1247:mitochondria 1244: 1216: 1205: 1190: 1179: 727:Earth formed 426: 150: 144: 134: 132: 121: 114: 65: 61: 59: 44: 5315:Systematics 5186:Mutationism 5004:Catagenesis 4932:Snake venom 4865:Eusociality 4843:in primates 4833:Cooperation 4761:In animals 4581:butterflies 4554:Cephalopods 4544:Brachiopods 4476:Development 4450:Mate choice 4203:Convergence 4186:Coevolution 4144:Abiogenesis 3895:www.cdc.gov 3847:MicrobeWiki 2988:www.els.net 2835:www.els.net 2336:: 127–137. 2053:Abiogenesis 1930:macroscopic 1922:microscopic 1910:candidiasis 1906:Candida spp 1802:Chlorophyta 1790:mixotrophic 1779:chlorophyll 1736:Tetrahymena 1717:trichocysts 1613:pseudopodia 1523:Methanogens 1472:Piezophiles 1465:Picrophilus 1456:Acidophiles 1419:Melanopyrus 1401:Pyrodictium 1395:Pyrobaculum 1331:Phanerozoic 1327:Proterozoic 1303:conjugation 1241:Prokaryotes 1219:amphiphiles 183:This box: 157:Myxogastria 82:prokaryotic 76:, unlike a 5176:Lamarckism 5154:Philosophy 5077:David Hume 5039:Peripatric 5034:Parapatric 5019:Ecological 4999:Anagenesis 4994:Allopatric 4986:Speciation 4950:Gradualism 4875:Metabolism 4735:chromosome 4725:Eukaryotes 4503:Modularity 4420:Population 4346:Population 4307:Speciation 4285:Panspermia 4238:Extinction 4233:Exaptation 4208:Divergence 4181:Cladistics 4169:Reciprocal 4149:Adaptation 4053:2020-01-07 4028:2014-03-01 3969:All at Sea 3937:0855462515 3900:2015-11-23 3876:2015-11-23 3852:2015-11-23 3828:2015-11-23 3798:2015-11-23 3771:2015-11-23 3729:2015-11-23 3702:2015-11-23 3675:2015-11-23 3648:2015-11-23 3558:2015-11-23 3507:2015-11-23 3480:2015-11-23 3456:2015-11-23 3432:2015-11-23 3423:"Protozoa" 3334:2015-11-23 3310:2015-11-23 3222:Eukaryotes 3070:: 945785. 3044:2015-11-22 3017:2015-11-22 2993:2015-11-22 2912:2015-11-22 2901:(2): 371. 2864:2015-11-22 2840:2015-11-22 2813:2015-11-22 2740:2015-11-22 2633:2015-11-22 2463:2015-11-22 2439:2015-11-22 2383:2015-11-22 2310:2015-11-22 2286:2015-10-28 2122:2013-05-30 2100:References 1943:slime mold 1888:cell cycle 1730:Paramecium 1712:Vorticella 1700:Paramecium 1695:Ciliophora 1688:Leishmania 1637:Percolozoa 1625:Choanozoa 1617:Euglenozoa 1574:Rickettsia 1553:eukaryotic 1538:Eukaryotes 1532:DNA damage 1515:Halococcus 1503:Haloarcula 1494:Halophiles 1487:Pyrococcus 1476:barophiles 1461:Sulfolobus 1437:Halorubrum 1407:Pyrococcus 1259:chromosome 1193:protocells 1191:Primitive 519:Arthropods 459:Eukaryotes 152:Plasmodium 110:protocells 86:eukaryotic 5310:Protocell 5161:Darwinism 5049:Sympatric 4798:processes 4686:Tetrapods 4635:Kangaroos 4561:Dinosaurs 4498:Inversion 4467:Variation 4388:Gene flow 4381:Inclusive 4191:Mutualism 4136:Evolution 3979:27 August 3086:1472-3654 2952:1088-9051 2804:"Archaea" 2782:1559-0836 1966:Nummulite 1866:cytoplasm 1818:cellulose 1691:species. 1621:Amoebozoa 1509:Haloferax 1375:archaios, 1235:membranes 1212:ribocells 540:Dinosaurs 5363:Category 5338:Category 5213:Vitalism 5208:Theistic 5201:Spandrel 4885:Morality 4880:Monogamy 4755:plastids 4720:Flagella 4676:Reptiles 4657:sea cows 4640:primates 4549:Molluscs 4527:Bacteria 4415:Mutation 4348:genetics 4324:Taxonomy 4270:Mismatch 4250:Homology 4164:Cheating 4159:Altruism 3618:26422142 3578:PLOS ONE 3409:25923521 3369:PLOS ONE 3350:Protozoa 3306:. Nature 3281:26195746 3204:26593032 3163:26884154 3104:21253540 2970:16169924 2790:25416397 2717:31587633 2607:29111273 2591:: 8–25. 2561:23559881 2553:24509783 2518:26068451 2404:Bacteria 2360:25460806 2238:(2015). 2219:25653653 2168:19580865 2046:See also 2038:Bursaria 1998:Caulerpa 1822:red tide 1706:Stentors 1659:Protozoa 1645:Sulcozoa 1633:Loukozoa 1605:flagella 1601:Protozoa 1585:Protozoa 1346:bacteria 1323:Archaean 1283:plasmids 1265:Bacteria 1255:nucleoid 1231:vesicles 1227:micelles 1208:ribozyme 1181:Ice Ages 574:Primates 522:Molluscs 146:Caulerpa 117:colonies 98:protozoa 90:bacteria 70:organism 68:, is an 5229:Related 5059:History 4920:Meiosis 4855:Empathy 4850:Emotion 4750:nucleus 4691:Viruses 4681:Spiders 4593:Mammals 4576:Insects 4376:Fitness 4312:Species 4111:Outline 3824:(9): 17 3609:4589404 3586:Bibcode 3400:4418965 3377:Bibcode 3272:4517231 3249:Bibcode 3154:4780597 3131:Bibcode 3095:3021854 3064:Archaea 2961:1240075 2708:6792439 2509:4490491 2351:4359759 2210:4299406 2193:: 737. 2030:Stentor 1993:, algae 1902:meiosis 1862:budding 1808:Diatoms 1756:meiosis 1650:Euglena 1581:alone. 1549:meiosis 1545:mitosis 1352:Archaea 1340:Clonal 1273:Modern 1251:nucleus 1149:← 1125:← 1104:← 1084:← 1063:← 1043:← 1023:← 1002:← 982:← 962:← 942:← 922:← 902:← 881:← 861:← 840:← 820:← 800:← 780:← 760:← 740:← 720:← 556:Mammals 531:Flowers 390:– 385:— 380:– 370:– 365:— 360:– 350:– 345:— 340:– 330:– 325:— 320:– 310:– 305:— 300:– 290:– 285:— 280:– 270:– 265:— 260:– 250:– 245:— 240:– 230:– 225:— 220:– 143:, like 124:Gametes 94:archaea 5348:Portal 5024:Hybrid 4860:Ethics 4702:organs 4664:Plants 4650:lemurs 4645:humans 4630:horses 4620:hyenas 4608:wolves 4603:canids 4537:origin 4004:  3934:  3616:  3606:  3407:  3397:  3279:  3269:  3202:  3192:  3161:  3151:  3102:  3092:  3084:  2968:  2958:  2950:  2788:  2780:  2770:  2715:  2705:  2664:  2605:  2559:  2551:  2516:  2506:  2412:  2358:  2348:  2254:  2236:Lane N 2217:  2207:  2166:  1880:cancer 1858:yeasts 1772:diatom 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Index

Unicellularity

Valonia ventricosa
alga
organism
cell
multicellular organism
prokaryotic
eukaryotic
bacteria
archaea
protozoa
algae
fungi
protocells
colonies
Gametes
evolved independently
Dictyostelium discoideum
multinucleate
Caulerpa
Plasmodium
Myxogastria
Life timeline
view
talk
edit
Water
Single-celled life
Photosynthesis

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