Question

when you exercise you generate excess heat and your body temperature rises. blood vessels dilate in the skin, warm blood flows closer to the body surface and lose heat. This exemplifies

A. negative feedback

B. positive feedback

C. dynamic equilibrium

D. integration control

E. set point adjustment

Answer 1

Answer

A. Negative feedback

Explaination: The negative feedback mechanism is a regulatory mechanism where the stimulus causes the cessation of the output product or substance which causes the stimulus in the first place.

Here there is substantial increase in the heat and hence the body temperament. To attain the homeostasis the body must counter the further increase in temperature, and at the same time, work to decrease the body temperature.

This feat is attained by the negative feedback loop as described in the question by dissipation if heat via body surface.

It was a pleasure answering your question. Hope this helps...

Good luck!