Question

When is natural selection most likely to occur?

A. when an ecosystem is going through an environmental change
B. when there are few genetic differences among individuals within a population
C. when there are enough resources in the ecosystem for the population to use
D. when gene flow is high among the populations in an ecosystem

Answer 1

A

Step-by-step explanation:

Natural selection is most likely to occur in centuries of gradual climate change. Climate change is essentially environmental change, which is why the answer should be A.