8. Humans need oxygen to break down food in order to provide energy for cells. The oxygen needed for this process is delivered by an organ system called the A. respiratory system. B. lungs. C. digestive

asked Oct 12, 2021 49.9k views

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Answer: B

Step-by-step explanation: we use lungs to breathe, so we take oxygen by lungs.

Richard Reddy answered Oct 15, 2021

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Answer:

The answer is B. Lungs

Joe D answered Oct 16, 2021

by Joe D

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