What is pepsinogen and how does it helps in digestion of protein ? ​

i hope it is helpful .................

c. movement because i took the test and it lets me review my answers

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.