Vital Functions reptile

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