Why is a relatively large percentage of blood (in excess of need) sometimes directed to the skin? a. to produce vitamin D b. to cleanse the blood c. to eliminate wastes d. to eliminate heat e. to pick up nutrients
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James K.
How does the skin regulate body temperature? A. by increasing sweat production B. by retaining water C. by producing vitamin $\mathrm{D}$ D. by regulating fat content in the epidermis
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