chapter 31 crossword

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Across
  1. 2. loss scaly skin prevents
  2. 4. dry, scaly skin . . . occasionally
  3. 8. and birds dinosaurs are the ancestors of
  4. 10. reptiles are believed to have evolved from
  5. 13. it rely on behavior to help control body temp
  6. 14. land reptiles live
  7. 15. dinosaurs disappeared at the end of the . . . . .period
  8. 16. lungs most reptiles breath using
  9. 17. Reptiles have
Down
  1. 1. what is the animal on the first page
  2. 3. with the arrival of the dinosaurs came a great . . .of reptiles took place
  3. 5. Jurassic dinosaurs came during the . . . and . . .periods
  4. 6. What group became dominate about 215 mill years ago
  5. 7. scaly skin does not
  6. 9. how many dinosaurs are on page 7
  7. 11. A reptile is part of the class
  8. 12. scales can be rough or