Across
- 2. odonteciti
- 6. cells that carry oxygen to the muscles
- 8. small mammal located in the waters of South America
- 9. tool using sound to determine location
- 11. lizards, turtles, etc.
- 12. internally generates heat
- 13. Sirenia
- 15. electroreceptors
- 16. jawless creatures
- 17. cartilaginous fish
- 20. egg hatches inside mother
- 21. live birth
- 23. to help birds excrete salt
- 25. Pinnipedia that has downward pointing tusks
- 27. eats meat
- 28. provides buoyancy for sharks
- 29. Pinnipedia that sits on their stomach
- 30. mammal located in the waters of the northern Pacific Ocean
- 32. Agnatha
- 33. manatees
- 34. killer whale
Down
- 1. focuses sound from echolocation
- 3. externally generates heat
- 4. Osteichthyes
- 5. seals, walrus, etc.
- 6. blue whale
- 7. used to detect vibrations in water
- 10. Chondrichthyes
- 13. movement of a species
- 14. provides buoyancy in bony fish
- 18. egg when born
- 19. white marine bear
- 20. bony fish
- 22. Mysticeti
- 24. birds
- 26. Pinnipedia that walks on flippers
- 31. slows a whales heart rate