AP BIOLOGY

Detailed explanation-1: -Two species might produce egg and sperm cells that can’t combine in fertilization, even if they meet up through mating. This is known as gametic isolation.

Detailed explanation-2: -: the inability of a species to breed successfully with related species due to geographical, behavioral, physiological, or genetic barriers or differences.

Detailed explanation-3: -Speciation occurs when two groups within the same species become unable to reproduce to form viable fertile offspring. This may involve some kind of physical separation accompanied by genetic divergence.

Detailed explanation-4: -What does it mean for two species to be reproductively isolated from each other? They do not interbred and they produce fertile offspring.

Detailed explanation-5: -Behavioral isolation occurs when two populations that are capable of interbreeding develop differences in courtship rituals or other behaviors.