Which of the following is NOT an element of the "radiator" hypothesis?
A) bipeds expose less of their bodies to the sun than quadrupeds
B) bipeds are farther from the ground and exposed to cooling air
C) body hair traps cooling moist air close to the skin
D) the blood flow system bipeds have to move blood against gravity also works to cool the brain

Question

Quizplus · Accepted Answer

None of the other choices are elements of the "radiator" hypothesis, which proposes that the upright posture of bipeds increases cooling efficiency through exposure to air and decreased solar radiation, and that the circulatory system plays a role in maintaining thermal regulation. Choice C describes how body hair can trap warm air close to the skin, which would decrease cooling efficiency and is not a component of the hypothesis.

Which of the Following Is NOT an Element of the "Radiator