Fish in a local lake have a mixture of brown and green scales and are found throughout the lake. Over a 5-year period, the lake develops more plant growth and an exotic predatory frog is introduced. What change would you expect to see in the original fish population?
A) No visible changes will occur in the fish population.
B) The fish will develop to resemble the introduced frog.
C) Brown-scaled fish will become more common.
D) Fish that prefer the unvegetated areas of the lake will become more common.
E) The fish with green scales will become more common.

Question

Quizplus · Accepted Answer

With the increase in plant growth, fish with green scales would likely become more common due to better camouflage in the vegetated environment, offering them protection from predators, including the newly introduced frog. This natural selection process favors traits that enhance survival, in this case, green scales blending with the plant-rich habitat.

Fish in a Local Lake Have a Mixture of Brown