Question

Which is the best definition of directional selection?
a process by which two species can no longer reproduce
a process by which one of the extreme variations of a trait is favored
a process by which individuals with either extreme of a trait are favored
a process by which average individuals in a population are favored

Answer 1

Answer:

B. a process by which one of the extreme variations of a trait is favored

Explanation:

The graph for this type of selection looks sort of like a camel's hump. With that being said, the phenotype of a population experiencing directional selection goes from one extreme to the other. Reference the evolution of the peppered moth during the Industrial Age as an example.

Sincerely hope this helps! God bless!

Answer 2

Answer: b) a process by which one of the extreme variations of a trait is favored  

Explanation:   :)