Across
- 1. like reptiles, amphibians are
- 6. extinct early amphibian with a weird head
- 10. phylum of amphibians
- 11. part of the _______ kingdom
- 14. class of animals that are able to live both on land and in water
- 15. typically spend their adult life on land and returning to water to breed.
- 16. frogs have a _____ intestine
- 19. limbless,vermiform or serpentine amphibians
- 20. must stay in a ______ environment, to survive
Down
- 2. most amphibians have an/a _____ life cycle
- 3. frogs have _____ feet
- 4. a mexican salamander capable of regeneration
- 5. a tailless amphibian with long hind legs for leaping
- 7. a lizard-like amphibian
- 8. most amphibians that are brightly colored are
- 9. produce useful proteins
- 12. typically having dry warty skin that can exude poison looks like a frog
- 13. largest amphibian to ever live
- 17. how many chambers do amphibians' hearts have
- 18. can breathe and absorb _____ through their skin