Question

Answer briefly:(a) Why are villi present in the intestine and not in the stomach?(b)How does pepsinogen change into its active form?(c) What are the basic layers of the wall of alimentary canal?(d) How does bile help in the digestion of fats?

Answer 1

Answer:

i hope this will help u

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Answer 2

Answer:

a:- villis are present in intestine not in stomach because it increase the surface area of absorption when the digestion gets completed. But in stomach yet digestion is not completed.So there is no point of absorption.