Across
- 3. Sharks and rays belong to the class called
- 6. are a sort of mammals
- 9. is a bony fish
- 10. are a sort of earthworm
- 13. they lay eggs
- 14. are clawless fish
- 15. the name given to vertebrates
- 16. what types are snakes
Down
- 1. are a sort of flatworms
- 2. They must keep their skin moist
- 4. is like a wombat
- 5. they feed their babies with milk
- 7. Is a biological name for birds
- 8. are members of the second-largest phylum
- 11. are the largest animal phylum
- 12. are a sort of roundworms