Answer:
O
Explanation:
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The Soviet Union
but the first man on the moon was the US
The answer is B. Digestive and cardiovascular
Answer:
The proton gradient produced by proton pumping during the electron transport chain is used to synthesize ATP. Protons flow down their concentration gradient into the matrix through the membrane protein ATP synthase, causing it to spin (like a water wheel) and catalyze conversion of ADP to ATP. Hope this helps!
Explanation:
Possible brainliest?
