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While out rollerblading with your friends, you hit a crack in the asphalt, fall, and cut and scrape your knee

Biology

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While out rollerblading with your friends, you hit a crack in the asphalt, fall, and cut and scrape your knee. Blood flows out from the injury and you put pressure on it as you make your way home. After resting with your leg elevated, you notice that the bleeding has stopped. Do you think that the clotting of blood after an injury is a positive or a negative feedback response? Explain your reasoning.