試題詳解

39. How would a decrease in the number of corticosteroid receptors in the hypothalamus affect levels of corticosteroids in the blood?
(A)Blood levels will rise due to a failure in positive feedback.
(B)Blood levels will rise due to a failure in negative feedback.
(C)Blood levels will decline due to a failure in positive feedback.
(D) Blood levels will decline due to a failure in negative feedback.
(E)Blood levels will not change because there are no receptors to respond to corticosteroids.