Across
- 2. animal with a backbone
- 3. the number of legs an insect has
- 8. has wings and feathers
- 9. hard outer covering
- 10. has moist skin
- 11. young, mammals reproduce this way
Down
- 1. ae part of this large group
- 4. has dry scaly skin
- 5. have hair or
- 6. where amphibians can live
- 7. blooded, when the body temperature varies