Answer: "homeostasis" .
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I believe the answer is Frictional Force
Answer - A. Deep because there is less O2 exchange
Reasoning - Bacteria has been known to only use half a percentage which is .5 percent of O2.
Explanation:
they are all related to CO2 in a way
Answer:
a substance that can dissolve other substances
Explanation:
i just know this stuff. hope this helps and please mark as brainiest