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Natural Selection in a Population of Organisms

APBIO-YLVHKV

For natural selection to occur, which of the following must be true of a population of organisms?

A

Phenotypic variations must be based on genetic variations rather than on varying environmental conditions.

B

The population must be occupying the same niche as another local population.

C

Organisms in the population must be capable of sexual reproduction.

D

Food resources must be limited.