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blagie [28]
3 years ago
10

Oxygen is a by-product of ______________ and is needed by living organisms for the process of ______________.

Biology
1 answer:
Katyanochek1 [597]3 years ago
4 0
The answer is D, photosynthesis and respiration.


—Evidence—

Oxygen is a byproduct of photosynthesis and, correspondingly, carbon dioxide the byproduct of respiration.

Oxygen gives our cells the ability to break down food in order to get the energy we need to survive. Although other animals may use different organs to breathe with, they all get oxygen into their bodies through respiration.
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