Question

question 5 (2.5 points)
in lake victoria, hundreds of cichlid fish species arose after the lake last dried up 12,400 years ago. this is an example of

sympatric speciation
the founder effect
gene flow
genetic drift

Explanation:

Sympatric speciation occurs when new species evolve from a single ancestral species while inhabiting the same geographic region. In Lake Victoria, the cichlid fish species arose in the same lake (same geographic area) after it refilled. The founder effect is about a new population being established by a few individuals. Gene flow is the transfer of genetic material between populations. Genetic drift is random change in allele frequencies. Since the speciation happened in the same lake (sympatric), it fits sympatric speciation.

Answer:

sympatric speciation