Chapter 14Section Review

Answer to Question

List examples of the

three classes of fish.

Answer to Question

Explain how jawless and cartilaginous fish take in

food.

Jawless fish are parasites that attach to other fish.

Cartilaginous fish are predators.

Describe the many ways fish are important to humans.

Answer to Question

• Food

• Pets

• They control the growth of insect and plant pests.

Answer to Question

Female fish lay thousands of eggs. Why aren’t lakes and oceans overcrowded with fish?

Many eggs are not fertilized; some eggs and young fish are

eaten by predators.