Question 17.
The right answer is 2nd option or " Gastric inhibitory peptide(GIP)"
Explnation
gastric inhibitory peptide, also known as glucose-dependent insulinotropic polypeptide is help to stimulate the insulin from pancreas . Another function is it help to decrease the stomach acids secretion .
Question 18
The right answer is 4th option or " the increase the surface area of the mucosa of the small intestine "
Explanation
In mucosa layer of small intestine circular forlds and microvilli present . The circilular folds is also known as Plicae . The intestinal villi is a finger like progection present in the inner wall of the mucosa layer . These two structure is help to increase the surface area for proper absorption .
Question 19.
The right answer is 2nd option or " Shivering"
Explanation
When body temparature gets down then blood vessels are constrict so that heat is conserved . Sweat glads are stop to produce sweat . Shivering started ( it is a muscle activity which help to genaraye heat and keep the body warm).
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