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Which of the following BEST defines cellular respiration?

A. The combining of oxygen and food molecules to form energy.
B. The process through which we breathe in and out.
C. The movement of oxygen through the circulatory system.
D. The transport of oxygen and carbon dioxide into and out of cells.

User Jatha
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1 Answer

6 votes

Answer:

Option A and B im leaning more towards option B

Step-by-step explanation:

User Azakolyukin
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