The secretion of ?b? is decreased by 'a', secretion of 'c' is increased by 'b' while the secretion of 'a' is decreased by 'c'. Increased or decreased amounts of a hormone cause an increase or decrease in the amount of the following hormone in the system. Now if 'a' is added to the system, the secretion of 'c' is
A) Decreased
B) Increased
C) First decreased and then increased
D) First increased and then decreased
Correct Answer: A
Solution :
[a] Increasing the amount of 'a' decreases the secretion of '&'. Since increasing 'y increases the secretion of 'c', decreased 'A' leads to decreased 'c' which in turn leads to the increased secretion of ?a?.
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