Natural selection on phenotypes and on genotypes a only ac

Natural selection _______ on phenotypes and _______ on genotypes.

a. only acts indirectly; only acts indirectly
b. Natural selection cannot act on phenotypes, either directly or indirectly.
c. only acts indirectly; can act directly
d. can act directly; only acts indirectly
e. can act directly; can act directly

Solution

Option D. Can act directly ; only acts indirectly.

Natural selection directly acts on the physical traits and forces the genotype to change indirectly