Answer: 37.2 trillion cells
Answer:
The answer is autotrophs
Explanation:
During the early days of the Earths life there was no oxygen but there was plenty of CO2 which the autotrophs took and used as food while discarding the excess which was the oxygen.
Answer:
it reduces ths acid in the body.
Explanation:
when you have stomach problems they usually pres ribe you with an antacid and that reduces the acid that is occurring and helps with the problem.
Answer: Certain proteins
Hope this helps!
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