An organism that possesses traits to survive and promote reproductive success is considered to be:

Sewall Wright effect is . . . . . . .

In a random mating population in equilibrium,which of the following brings about a change in gene frequency in a non-directional manner?

Organisms that possess favorable variations are considered to be:

Assertion : Natural selection is the outcome of difference in survival and reproduction among individuals that show variation in one or more traits.
Reason : Adaptive forms of a given trait tend to become more common; less adaptive ones become less common or disappear.

Which of the following is the most accurate reason for the development of resistance to pesticides in insect populations that damage crops?