Which of these conditions should completely prevent the occurrence of natural selection in a population over time?
A) All variation between individuals is due only to environmental factors.
B) The environment is changing at a relatively slow rate.
C) The population size is large.
D) The population lives in a habitat where there are no competing species present.

Question

Quizplus · Accepted Answer

Natural selection can only occur when there is genetic variation among individuals in a population. If all variation is due only to environmental factors, there is no genetic basis for natural selection to act upon, and thus it cannot occur.

Which of These Conditions Should Completely Prevent the Occurrence of Natural