Fish in a Local Lake Have a Mixture of Brown

question 77

Multiple Choice

Fish in a local lake have a mixture of brown and green scales and are found throughout the lake. Over a five-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)The fish with green scales will become more common.
• B)Brown-scaled fish will become more common.
• C)Fish that prefer the unvegetated areas of the lake will become more common.
• D)The fish will develop to resemble the introduced frog.
• E)No visible changes will occur in the fish population.

Distinguish between mutually exclusive and independent events.

Calculate the number of possible outcomes using the multiplication principle.

Understand the concept of complementary events and their probability sum.

Apply the addition and multiplication laws of probability.