When Peter and Rosemary Grant studied several species of Darwin’s finches, they discovered that major climate changes affected which populations of finches survived. This is an example of a....

When Peter and Rosemary Grant studied several species of Darwin’s finches, they discovered that major climate changes affected which populations of finches survived. This is an example of

a. heritability.

b. the all-or-none law.

c. natural selection.

d. nature versus nurture.