How do the blood vessels of the skin respond to cold temperatures?
A. Dilation, which diverts blood away from the skin.
B. Constriction, which diverts blood away from the skin.
C. Dilation, which pulls blood to the skin's surface.
D. Constriction, which pulls blood to the skin's surface.
Ans: B. Constriction, which diverts blood away from the skin.
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