Answer:
The scientific theory is a well-tested, broad explanation of a natural phenomenon that we use in everyday life
Explanation:
Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products.
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2: D 3: A 4: B 5:A 6:C PLEASE MARK BRAINLIEST!!