Science Chapter 3, Lessons 1-3
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Created by:
deeptisailappan on March 20, 2010
Subjects:
life science, fish, amphibians
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7 terms
Terms | Definitions |
|---|---|
 ectotherm | an animal whose body temperature changes with the temperature of the environment |
| endotherm | an animal whose body temperature is maintained at a steady temperature |
| swim bladder | an internal gas-filled sac that helps fish to swim at different depths |
| buoyant force | the force water exerts upward on any underwater object |
| atrium | smaller chamber of the heart; receives blood |
| ventricle | larger chamber of the heart; pumps blood out of the heart |
| habitat | the specific environment where an animal lives |
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