Answer:
Hydrochloric acid contributes to protein digestion by supplying H+ which activates pepsinogen, the precursor to pepsin. Pepsinogen is secreted by chief cells in the gastric glands of the body and antrum of the stomach.
Explanation:
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They are plants without a vascular system
Answer: plant tours
Explanation: operators work and keep it going and do not do tours
Answer:
Proteins and lipids