Question

unit 3: mechanisms of evolution

1. natural selection acts on:

a. populations, not individuals
b. individuals, not populations
c. both equally
d. neither

Explanation:

Natural selection acts on the individual organisms within a population. Traits of individuals that enhance survival and reproduction are more likely to be passed on. While populations evolve over time as a result of natural - selection acting on individuals, the direct target of natural selection is the individual.

Answer:

B. Individuals, not populations