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18 Cards in this Set
- Front
- Back
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evolution |
the decent of different species from a common ansecestor over many generation. |
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natural selection |
when one type of species becomes dominant over the original because of an adaptation. |
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adaptation |
a process in which a plant or animal becomes better fitted to its enviornment |
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fitness |
the ability to survive to the reproductive |
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strata |
a single bed of sedementary rock |
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fossil |
the remains of a dead creature |
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absolute age |
the determined age of something using carbondating |
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homologus structure |
anatomical structures that occour in different species
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vestigal structure |
evolution found in structure |
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superposition |
the lowest strata was formed above a higher one |
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biogeography |
study of locations of organisms around the world |
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analogus structure |
closely related structures |
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phylogeny |
relationship by ancestry |
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convergent evolution |
the process where organisms not closely related develop similar traits- |
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adaptive radiation |
the diversification of a group of organisms into forms filling different economic niches |
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artifical selection |
when humans customize the traits of a species to their liking |
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coevolution |
the influence of closely related species on each other in their evolution |
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divergent evolution |
when two or more species develop from a common ancestor |
