Answer:
It depends on the experiment I think
Explanation:
Answer:I think it is oxygen
Explanation:
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Hope this helps it’s been soo long
your answer is B. because An animal must do three things to control body temperature. First, the animal must find a source of heat. Second, it must find a way to conserve heat when temperatures in the environment are too cold. Third, it must find a way to get rid of extra heat when temperatures in the environment are too hot.