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:
˙˚ʚ(´◡`)ɞ˚˙
The answer is B- Embryological Development.
The desert and tundra are alike because they both have limited available water.
B. It was an explanation for how the earth originated.
