Fish are vertebrates that have backbones and breathe through gills. They lay eggs and eat a variety of foods like plankton, insects, other fish and plants. Common characteristics of fish include having scales, fins and being oviparous egg-layers that breathe with gills.

1. FISH

2. Are fish vertebrates or invertebrates?

3. They are vertebrates.
They have a backbone.

4. Can you see their backbones?

5. Fish have scales

6. Fish have fins

8. Fish breathe with gills.
They have no lungs.

9. Sharks are fish. They breathe with gills.

10. Are dolphins fish or mammals?

11. Dolphins are mammals.
Mammals breathe with lungs.
Fish breathe with gills.

12. Are fish viviparous
or oviparous?

13. Fish are oviparous. They lay eggs.

15. What do fish eat?

16. They eat plakton.
Which are microorganisms living in water.

17. They also eat insects.

18. Fish eat other fish.

19. Fish eat plants.

20. Can you recall three characteristics of fish?

21. Fish
Fish are oviparous. They lay eggs.