The mode of natural selection in which one extreme phenotype is fittest and the environment selects against the others is
A) directional selection.
B) disruptive selection.
C) stabilizing selection.
D) artificial selection.
E) uniformitarianism.

Question

Quizplus · Accepted Answer

Directional selection pushes a population towards one or the other extreme in terms of phenotype, such as no feathers or extra feathers, but not an intermediate amount.

The Mode of Natural Selection in Which One Extreme Phenotype