The figure below shows what happens in insect populations when crops are sprayed with insecticides.This is an example of ______.
A) natural selection
B) genetic drift
C) founder effect
D) gene flow

Question

The figure below shows what happens in insect populations when crops are sprayed with insecticides.This is an example of ______. 
A) natural selection 
B) genetic drift 
C) founder effect 
D) gene flow

Quizplus · Accepted Answer

The figure shows that the insecticide selectively kills off a significant portion of the insect population, leaving behind only those individuals that have a resistance to the insecticide. This is an example of natural selection, where the environment (in this case, the presence of the insecticide) favors certain traits (in this case, resistance) that confer a survival advantage.

The Figure Below Shows What Happens in Insect Populations When