The process that decreases the number of organisms with phenotypes less fit to meet environmental challenges is:
A) natural selection.
B) genetic drift.
C) gene flow.
D) genetic polymorphism.
E) migration.

Question

Quizplus · Accepted Answer

Natural selection is the process by which organisms with traits better suited to their environment tend to survive and reproduce, thereby decreasing the number of less fit phenotypes.

The Process That Decreases the Number of Organisms with Phenotypes