You are studying two populations of a certain species of frog in two ponds five kilometers apart. There are no other ponds in the area. In pond A all the frogs are small and have a few black spots on them. In pond B most of the frogs are large and lack spots but a few are small without spots and a few are large with spots. Because of the differences in these two populations

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The differences in physical characteristics between the two frog populations suggest that the distance between the ponds acts as a barrier to interbreeding, leading to genetic divergence. Additionally, the variation within pond B and the uniformity within pond A could indicate a genetic bottleneck in pond A's history, where a significant reduction in population size led to reduced genetic diversity.

You Are Studying Two Populations of a Certain Species of Frog