Science
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6 terms
Terms | Definitions |
|---|---|
 adaptation | something that is changed or modified to suit new conditions or needs |
| species | group of similar organisms that can breed and produce fertile offspring |
| fossil record | chronological collection of life's remains in sedimentary rock layers |
| vestigial structures | remnant of a structure that may have had an important function in a species' ancestors, but has no clear function in the modern species. |
| homologous structures | Structures in different species that are similar because of common ancestry. |
| natural selection | a natural process resulting in the evolution of organisms best adapted to the environment |
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