Evolution Vocabulary

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a trait or organ that appears similar in two unrelated organisms

well-tested explanation that unifies a broad range of observations

differences among individuals of a species

principle that all living things have a common ancestor

structures that have different mature forms in different organisms but develop from the same embryonic tissues

organs that serve no useful function in an organism

process by which individuals that are better suited to their environment survive and reproduce most successfully

ability of an organism to survive and reproduce in its environment