which is the best definition of directional selection?\n○ a process by which two species can no longer…

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

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

Answer

: the first is reproductive isolation, the third is disruptive selection, and the fourth is stabilizing selection.