Final answer:
Allopatric speciation is the process in which a few members of a species move to a new geographical area or a natural situation arises to physically divide organisms. In this process, genetic and phenotypic differences may arise between the separated populations.
Step-by-step explanation:
Allopatric speciation is the process in which a few members of a species move to a new geographical area or a natural situation arises to physically divide organisms. In this process, genetic and phenotypic differences may arise between the separated populations. Even though they may still interbreed, speciation is in progress and may not yet be completed.