Which of the following statements are true of the body's responses to a warm or cold environment (Select all that apply)?
A)In a cold environment,arterioles in the dermis dilate to keep the skin warm.
B)In a warm environment,sweat glands secrete more sweat onto the skin surface.
C)In a cold environment,muscle tone decreases to prevent fatigue and waste of energy.
D)In a warm environment,blood flow through the dermis increases.
E)In a cold environment,digestion speeds up to produce more energy in the form of heat.
F)In a warm and humid environment,vasoconstriction is the most efficient mechanism of heat loss.

Question

Quizplus · Accepted Answer

In a warm environment, the body uses sweat glands to secrete more sweat onto the skin surface, which evaporates and cools the body down. In a cold environment, arterioles in the dermis constrict to conserve heat, and blood flow is shunted away from the skin. Therefore, options A and F are incorrect. Muscle tone does not decrease in a cold environment but rather increases as shivering occurs to generate heat, so option C is also incorrect. Digestion does not speed up in a cold environment, but rather slow down, conserving energy, so option E is incorrect.

Which of the Following Statements Are True of the Body's