AP BIOLOGY

Detailed explanation-1: -This is called allopatric speciation. There are five types of speciation: allopatric, peripatric, parapatric, and sympatric and artificial. Allopatric speciation (1) occurs when a species separates into two separate groups which are isolated from one another.

Detailed explanation-2: -In allopatric speciation, groups become reproductively isolated and diverge due to a geographical barrier. In sympatric speciation, reproductive isolation and divergence occur without geographical barriers-for example, by polyploidy.

Detailed explanation-3: -Allopatric speciation is a mechanism to evolve reproductive isolation; it is caused by the accumulation of genetic differences between populations while they are geographically isolated.

Detailed explanation-4: -Reproductive isolation can develop in a variety of ways, including behavioral isolation, geographic isolation, and temporal isolation.