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change in a kind of organism over time; process by which modern organisms have descended from ancient organisms
the remains (or an impression) of a plant or animal that existed in a past geological age and that has been excavated from the soil
Chain of islands near South America where Darwin developed his theory of natural selection by studying the unique life there.
English natural scientist who formulated a theory of evolution by natural selection (1809-1882)
a natural process resulting in the evolution of organisms best adapted to the environment
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