Natural selection ________.
A) works on populations, but its long-term effect is rendered on individuals
B) works on individuals, but its long-term effect is rendered on populations
C) can work only on populations of genetically identical individuals
D) works regardless of the amount of genetic variability in populations

Question

Quizplus · Accepted Answer

Natural selection acts upon individual organisms but its effects are seen in changes in the frequency of traits within a population over time, which ultimately affects the population as a whole. Therefore, selection works on individuals, but its long-term effect is rendered on populations.

Natural Selection ________