Answer:
when body temperature rises, such as when exercising on a hot day, the dermal blood vessels will dilate, in the sweat glands begin to secrete more sweat. the invaporation of the sweat from the surface of the skin cools the body by dissipating heat.
Explanation:
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Answer:
falso
Explanation:
Las únicas células humanas que no contienen pares de cromosomas son las células reproductoras, o gametos, que portan solamente una copia de cada cromosoma