Lake Tanganyika, the Oldest of the Great Ancient Lakes in East

Multiple Choice

Lake Tanganyika, the oldest of the Great Ancient Lakes in East Africa, harbors about 250 species of cichlid fish which evolved from a single ancestor into a diverse group of species that each exploits the resources of the lake environment in a different way. The evolution of one species of cichlid into many species within Lake Tanganyika is an example of

A) adaptive radiation.
B) convergent evolution.
C) disruptive selection.
D) stabilizing selection.
E) allopatric speciation.