Biology

The correct answer is: A.Speciation that occurs without physical separation.

Explanation:

Sympatric speciation occurs when new species evolve from a single population in the same geographic area, without any physical barrier separating them. In sympatric speciation, different factors such as behavioral changes, ecological niches, temporal isolation, or genetic differences can cause populations within the same area to diverge and no longer interbreed, eventually leading to the formation of distinct species.

The othe...