Frequency- Dependent Selection,as Seen in the Case of the Scale-

Multiple Choice

Frequency- dependent selection,as seen in the case of the scale- eating fish in Lake Tanganyika,tends to

A) stimulate new mutations.
B) produce random changes in allele frequencies.
C) eliminate rare alleles and favor whichever allele is initially most frequent.
D) maintain two phenotypes in a dynamic equilibrium in a population.