GEOLOGY

Detailed explanation-1: -Allopatric speciation (1) occurs when a species separates into two separate groups which are isolated from one another. A physical barrier, such as a mountain range or a waterway, makes it impossible for them to breed with one another.

Detailed explanation-2: -The physical separation of members of a population. populations may be physically separated when their original habitat becomes divided. Example: when new land or water barriers form. See also allopatric speciation.

Detailed explanation-3: -Geographic isolation occurs when two populations are separated by geographic barriers such as rivers, mountains, or bodies of water. For example, the Kaibab squirrel is a subspecies of the Abert’s squirrel that formed when a small population became isolated on the north rim of the Grand Canyon.

Detailed explanation-4: -Geographical isolation means the separation of species by physical barriers like water forms, oceans, mountains, etc. The organisms are ultimately separated from exchanging genetic material with other organisms of the same species.

Detailed explanation-5: -Geographic isolation, or allopatry, is a term used in the study of evolution. When part of a population of a species becomes geographically isolated from the remainder, it may over time evolve characteristics different from the parent population (due to natural selection).