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Laci:
Which is an example of a negative feedback? A. The accumulation of blood platelets, which cause blood clotting, is triggered by a tear in the lining of the blood vessel. B. The production of red blood cells, which transport oxygen, is triggered by a low level of oxygen in the blood. C. During childbirth, the secretion of hormone oxytocin, which intensifies the contractions, is triggered by uterine contractions.
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