evolution, changes over time, fossil, the remains of an organism, gradualism, slow change, embryro, organism early stages of growth, vestigial structure, no longer used by organism, homologous structure, same structure/different function, population, Organisms of a species living together in a group, genetic variation, differences in individuals or populations, genetic drift, a change in the gene pool, by chance., gene flow, transfer of genetic material from one population to another, natural selection, mother nature chooses who lives or dies, evolutionary mechanisms, cause changes in a population

Evolution vocabulary

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