Across
- 2. animals that are cold blooded
- 5. to be awake at night
- 7. to separate into groups
- 8. a group
- 12. cord, another word for column
- 13. animals that have rough skin
- 14. below your head is your
Down
- 1. not human
- 3. fish have this kind of skin
- 4. the opposite of vertebrate
- 6. animals that have scales
- 9. fish use these to breathe underwater
- 10. animals that have hair or fur
- 11. animals that have feathers