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Biology, 10.04.2020 22:34 girlgirl7230

Evolution is defined as:

a. a change in a physical trait of an individual during its lifetime.

b. a change in the frequency of alleles in a population over time.

c. survival of the fittest.

d. a change in the frequency of a physical trait in a population over time.

e. a progressive "ladder" of changes from the most primitive organisms to the most advanced organisms.

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