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11.3 Science Vocab.
Term | Definition |
---|---|
amphibian | vertebrate that is ectothermic and spends its early life in water. |
tadpole | the larva of a frog or toad. |
lung | organs of air-breathing vertebrates in which oxygen gas and carbon dioxide gas are exchanged between the air and the blood. |
atria | the two upper chambers of the heart that receive blood. |
ventricle | the lower chamber of the heart which pumps blood out to the lungs and body. |
habitat | the specific environment in which an animal lives. |