1. What class is this describing...hometherms that lay eggs.
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Other questions in this quiz
2. What class is this describing...poikilotherms that have gills when young but adults have lungs and can absorb oxygen through their skin.
3. When your body temperature depends on the temperature in your environment - (i.e. cold blooded)
4. When you give birth to live young.
5. When you regulate your own body temperature - (i.e. warm blooded)