Fish in a Local Lake Have a Mixture of Brown

question 30

Multiple Choice

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.

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