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| 2.The gradual development of something, esp. from a simple to a more complex form |
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| 1.The remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock: "sites rich in fossils". |
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| Artificial selection (or selective breeding) describes intentional breeding for certain traits, or combination of traits |
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| 1.The action or process of adapting or being adapted |
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| A biological condition in which a competing variant is increasing in frequency relative to other competing variants in a population. |
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| The process whereby organisms better adapted to their environment tend to survive and produce more offspring. |
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| The branch of biology that deals with the geographical distribution of plants and animals. |
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| A homologousfrom Greek ομολογειν, 'to agree' trait is any characteristic of organisms that is derived from a common |
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| A homologousfrom Greek ομολογειν, 'to agree' trait is any characteristic of organisms that is derived from a common |
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| Vestigiality describes homologous characters of organisms that have seemingly lost all or most of their original function in a species |
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| Charles Robert (1809–82), English historian and geologist; a proponent of the theory of evolution by natural selection. |
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| Jean-Baptiste Pierre Antoine de Monet, Chevalier de la Marck (1 August 1744, Bazentin, Somme – 18 December 1829), |
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| Georges Léopold Chrétien Frédéric Dagobert, Baron (1769–1832), French naturalist. He founded the science of paleontology. |
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| Lyell is a lunar crater that lies along the eastern edge of the Mare Tranquillitatis, at the northern arm of the bay designated Sinus... |
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| (geology) the deposition of one geological stratum on another. |
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| The age of a rock or formation given relative to other rocks or formation, usually defined as a zone fossil name. See also Absolute age.. |
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| Absolute dating is the process of determining an approximate age for an archaeological or palaeontological site or artifact. .... |
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| 1.The synthesis of substances by living organisms. |
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| The supposed production of living organisms from nonliving matter. |
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| 2.No longer in existence. |
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| a specialist in paleontology. |
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| A method of dating geological specimens by determining the proportions of particular radioactive isotopes present in a sample. |
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| the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance... |
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| Major evolutionary change. |
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| 2.The hypothesis that evolution proceeds chiefly by the accumulation of gradual changes (in contrast to the punctuationist model). |
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| The hypothesis that evolutionary development is marked by isolated episodes of rapid speciation between long periods of little or no change. |
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| The diversification of a group of organisms into forms filling different ecological niches. |
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| Convergent evolution describes the acquisition of the same biological trait in unrelated lineages.. |
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| In a broad sense, biological coevolution is "the change of a biological object triggered by the change of a related object". .... |
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| The endosymbiotic theory concerns the origins of mitochondria and plastids (e.g. chloroplasts), which are organelles of eukaryotic... |
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