Which is the best definition of directional selection?
A. a process by which two species can no longer reproduce
B. a process by which one of the extreme variations of a trait is favored
C. a process by which both extreme variations of a trait are favored
D. a process by which average individuals in a population are favored

Directional selection is the process where one extreme variation of a trait is favored, leading to a change in the population over time. The correct answer to the question is B. A process by which one of the extreme variations of a trait is favored. This concept is important in understanding how natural selection results in adaptations in species.
;

Answered by Anonymous | 2025-07-08

Directional selection is an evolutionary process where one extreme variation of a trait is favored, leading to a shift in phenotype in a population. An example is the survival of darker beetles when lighter ones are more easily spotted by predators. This concept contrasts with stabilizing and disruptive selection. ;

Answered by GinnyAnswer | 2025-07-08