Biology Chapter

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Across
  1. 4. type of egg that protects embryo from drying out, named after the amnion membrane
  2. 5. what relies on the behavior to help control body temperature??
  3. 8. fossil of the first known reptile dates aback to the???
  4. 9. this reptile is a herbivore and tears plants into shreds and swallow the tough fibrous chunks
  5. 10. temperate and tropical areas contain populations of reptiles that are remarkably???
  6. 11. ventral part of the shell in turtles and tortoises is called?
  7. 14. vertebrate that has dry, scaly skin, lungs, and terrestrial eggs with several membranes
  8. 16. example of a carnivorous reptile
  9. 17. modern lizards and snakes belong to the _____ order?
Down
  1. 1. made of mostly protein and develop from pits in the birds’ skin
  2. 2. what dilutes the ammonia in the urine and helps carry it away?
  3. 3. dorsal part of the shell in turtle and tortoises is called?
  4. 6. type of circulatory system reptiles have??
  5. 7. urine is produced in the what??
  6. 12. may be smooth or rough
  7. 13. four surviving groups of reptiles are lizards, snakes, crocodilians, turtles and tortoises, and the ___?
  8. 15. period about 245 million years ago when reptiles roamed earth