Bio Chapter 31

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Across
  1. 1. has red feathers
  2. 4. made of protein and develop pits
  3. 5. that helps the mechanical breakdown of food
  4. 7. named after the amnion
  5. 8. which is located at the lower end of esophagus
  6. 9. air flows though the lungs
  7. 10. something flys in the air
  8. 13. Lizards and snakes in order of what
  9. 15. has a spoon beak
  10. 16. the shell consists two parts a dorsal part and
  11. 17. generate their own body heat are called
Down
  1. 2. Rely on behavior to help control body temp
  2. 3. creature with scales and dry
  3. 6. has red ears
  4. 11. the animal’s backbone
  5. 12. the four surviving reptiles
  6. 14. a big lizard lives in Africa