Across
- 2. A reptile's heart has _____ chambers.
- 4. Their eggs have _____ shells.
- 5. For protection, their bodies have plates or _____.
- 7. organs used for respiration
Down
- 1. Inner skeletons are used as _____.
- 3. cold-blooded vertebrate
- 5. another word for a reptile's short limbs
- 6. what makes up the skeletons