An ectothermic vertebrate that spends its early life in water and its adult life on land.

The larval form of a frog or toad.

An organ found in air-breathing vertebrates that exchange oxygen and carbon dioxide with the blood.

An upper chamber in the heart that receives blood.

A lower chamber of the heart that pumps blood out of the lungs to the body.

The specific environment in which an animal lives.

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Chapter 3 Vocab

Chapter 3 Vocab Part 3

Word	Definition
amphibian	An ectothermic vertebrate that spends its early life in water and its adult life on land.
tadpole	The larval form of a frog or toad.
lungs	An organ found in air-breathing vertebrates that exchange oxygen and carbon dioxide with the blood.
atria	An upper chamber in the heart that receives blood.
ventricle	A lower chamber of the heart that pumps blood out of the lungs to the body.
habitat	The specific environment in which an animal lives.