Shiloh Broadway: Chapter 9

2. Their bodies are laterally flattened, and the tail paddle-shaped for swimming.
5. That lay eggs in fresh water.
6. Have narrow wings and a long, forked tail.
10. a complex nucleic acid that contains a cell's genetic information.
11. Organisms that have a body temperature that varies with that of the environment.
15. Is a large pinniped with a pair of distinctive tucks protuding down from the mouth.
19. evolved from now-extinct amphibians
20. birds that spend a significant part of their lives at sea and feed on marine organisms.
22. Organisms that lose metabolic heat to the environment without it affecting their body temperature.
26. Four footed.

1. Have unique pouch below their large beaks.
3. Organisms that retain some metabolic heat, which raises their body temperature.
4. The newborn is fed by milk secreted by mother's.
7. Comprise a large group or seabirds with distinctive tube-like nostrils and heavy beaks that are usually curved at the tip.
8. that do not have webbed feet.
9. Both evolved from different group of now-extinct reptiles.
12. Animals in which the eggs develop and hatch in the reproductive tract of females.
13. Organisms able to keep their body temperature more or less constant regardless of the temperature of the environment.
14. Venture into the open sea.
16. Internal air sacs that allow absorption of oxygen directly from air.
17. evolved from different group of now-extinct reptiles
18. Are graceful flyers that hover over their prey before plunging for it.
21. are flightless, with wings modified into stubby "flippers" that allow them to fly underwater.
23. Are black, long necked seabirds that dive and purse their prey.
24. A membrane that connects it to the womb.
25. To keep warm they have a thick layer of fat under their skin.