Question

Many male birds will expend a great deal of energy building nests. Females will mate with the males who build the best nests. This is best described as an example of ____.

a. ​natural selection
b. ​sexual selection
c. ​runaway selection
d. ​an invasive species
e. ​disruptive selection

Answer 1

The correct answer is option B. sexual selection.

Step-by-step explanation:

Sexual selection is a special type of natural selection proposed by Charles Darwin. According to this type of natural selection in which a particular sex organism chooses the opposite sex member of the species to mate with on the basis of the preferable traits and compete with the other members of the opposite sex.

Here female birds choose those male birds who build the best nests, it is an example of natural selection.