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Rzqust [24]
3 years ago
13

The principal reason we need oxygen is to

Biology
1 answer:
ElenaW [278]3 years ago
4 0

Answer:

E - all of the above.

Explanation:

Breathe- you inhale oxygen in order to live

digest food- the respiratory and digestive systems work together to power the body. A properly functioning respiratory system delivers adequate oxygen to the blood because the digestive system breaks down food and uses muscular contractions to move food through the digestive tract, it needs oxygen to function properly.

produce food- All plants need oxygen to grow and animals need oxygen to live.

produce ATP- plants take light from the sun, carbon and oxygen atoms in the air and hydrogen from the water to make energy molecules called ATP

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