In studying the human body, the instrument which i used to indirectly measure the metabolic rate is a: a) respirometer b) hydrometer c) calorimeter d) none of these

In studying the human body, the instrument which i used to indirectly measure the metabolic rate is a: a) respirometer b) hydrometer c) calorimeter d) none of these
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Answer :

ANSWER: A -- RESPIROMETER 
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