AP BIOLOGY

Detailed explanation-1: -Reproductive isolation is a mechanism that keeps species from mating with others. Prezygotic isolation prevents the fertilization of eggs while postzygotic isolation prevents the formation of fertile offspring.

Detailed explanation-2: -Post-Zygotic Isolation Post-zygotic barriers occur after fertilization. These barriers keep hybrid zygotes from developing into healthy, fertile adults. This means two members of different species mated to produce a hybrid that was either non-viable, sterile or both.

Detailed explanation-3: -category of reproductive isolation Prezygotic RIMs prevent the formation of hybrids between members of different populations through ecological, temporal, ethological (behavioral), mechanical, and gametic isolation. Postzygotic RIMs reduce the viability or fertility of hybrids or their progeny.

Detailed explanation-4: -Since any gamete has a chance of bumping into a gamete of a different species gametic isolation prevents fertilization at the gamete level. This is an example of prezygotic isolation because the zygote will not be created.