During Sympatric Speciation

Multiple Choice

During sympatric speciation

A) evolution occurs at a very rapid rate.
B) phenotypic differences disappear between subpopulations.
C) reproductive isolation between subpopulations occurs without geographic isolation.
D) a geographic separation occurs between certain subpopulations which leads to reproductive isolation.
E) mutation rates are unusually high, leading to reproductive isolation between two subpopulations.