Semipermeable means the cell membrane can pick and choose what goes out of it and into it. At least, that's what I believe it is.
O2 is the electron acceptor at the end of the electron transport chain.
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Answer:When a wound causes bleeding, the body responds with a positive feedback loop to clot the blood and stop blood loss. Substances released by the injured blood vessel wall begin the process of blood clotting
Explanation:
