Biology, 20.07.2019 23:30 landon5718
In order to retain heat, what occurs in the skin on a cold day? blood vessels of the dermis constrict. blood vessels of the dermis dilate. blood vessels of the epidermis constrict. blood vessels of the epidermis dilate.
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In order to retain heat, what occurs in the skin on a cold day? blood vessels of the dermis constri...
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