In mammals, a decrease in body temperature results in which of the following responses?

In mammals, a decrease in body temperature results in which of the following responses?




(A) Release of thyroxine decreases the rate of metabolism.
(B) Blood vessels close to the surface of the skin constrict.
(C) Increased secretion of epinephrine restricts the amount of sugar released into the circulatory system.
(D) The adrenal glands increase the release of acetylcholine into the circulatory system.
(E) Blood vessels in deep muscles constrict so that heat is conserved.



Answer: B


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AP Biology

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