Which are characteristics of natural selection? Select three options. It affects populations.It affects only individuals.It occurs when there is genetic variation.It occurs when organisms are genetically identical.It selects organisms with certain traits to survive.It selects organisms at random to survive.

Natural selection changes the traits of a population over generations, though selection acts on differences among individual organisms. It requires genetic variation so some individuals have traits that improve their chances of surviving and reproducing. Therefore, it affects populations, occurs when there is genetic variation, and favors organisms with certain traits—not organisms chosen at random.

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