LIFE SCIENCE

Detailed explanation-1: -Reproductive isolation occurs when a population splits into two groups and the two populations no longer interbreed. When populations become reproductively isolated, they can evolve into two separate species.

Detailed explanation-2: -Speciation is the process by which new species form. It occurs when groups in a species become reproductively isolated and diverge. In allopatric speciation, groups from an ancestral population evolve into separate species due to a period of geographical separation.

Detailed explanation-3: -The central idea here is that when populations are geographically separated, they will diverge from one another, both in the way they look and genetically. These changes might occur by natural selection or by random chance (i.e., genetic drift), and in both cases result in reproductive isolation.

Detailed explanation-4: -What does reproductive isolation mean? Reproductive isolation means that members of different species cannot interbreed and produce viable offspring. This can be pre-zygotic or post-zygotic, meaning before or after fertilization.