What Is Cellular Respiration? — Aerobic & Anaerobic

Which of the following best describes how photosynthesis and cellular respiration balance each other out so that the Earth doesn't run out of oxygen?

Choose one answer

Option A: A

Photosynthesis produces much more oxygen than cellular respiration uses up.

Option B: B

The two processes feed into a cycle: cellular respiration uses oxygen and produces carbon dioxide, while photosynthesis uses carbon dioxide and produces oxygen.

Option C: C

The two processes feed into a cycle: photosynthesis uses oxygen and produces carbon dioxide, while cellular respiration uses carbon dioxide and produces oxygen.

Option D: D

They do not balance each other out, oxygen will eventually run out.

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