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Which of the following is an example of positive feedback in the lumen of the stomach? which of the following is an example of positive feedback in the lumen of the stomach? hydrochloric acid converts pepsinogen to pepsin. pepsin works best in the acidic environment produced by hydrochloric acid. pepsin digests molecules of pepsinogen, producing more pepsin. chief cells secrete pepsinogen, which is a precursor to pepsin.
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Which of the following is an example of positive feedback in the lumen of the stomach? which of the...
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