Across
- 3. a thick layer of fat under the skin
- 4. are black longnecked sea birds
- 8. inhabits mangrove mangrove swamps
- 9. organisms that have a body temp that varies with that of the environment
- 10. organisms able to keep their body temp more or less constant regardless of the temp of the environment
- 11. belong to a ancient group of reptiles
- 13. have narrow wings and long necks forked tail
- 15. flightless birds
- 16. lager group of sea birds with long tube like noises
- 17. a muscle protein in many animals that store oxygen
- 18. in great danger of disappearing
- 20. are found in tropical indian and pacific ocean
- 21. organism that retain some metabolic heat
- 23. a complex nucleic acid that contains a cells genetic info.
Down
- 1. have a unique pouch below there large beak
- 2. small crustaceans whose bodies are compressed from side to side
- 5. used for jewerly
- 6. planktonic
- 7. spend most its time on rocks basking on rocks
- 10. a blood protein that transports oxygen in many animals
- 12. world wide numbers are low
- 14. get rid of excess salt
- 18. organism that lose metabolic heat to the environment without it affecting their body temp
- 19. they are found in dry coastal regions
- 22. are graceful flyers that haver over prey before plunging for it