Question

The two MOST efficient ways for the body to eliminate excess heat are:_______

A. Perspiration and tachycardia.
B. Hyperventilation and tachycardia.
C. Respiration and bradycardia.
D. Sweating and vasodilation.

Answer 1

D

Step-by-step explanation:

Vasodilation cause blood to transmit heat to the extremities and replace it with cooler one. Sweating removes heat by convection process

Answer 2

Sweating and Dilation of skin blood vessels.

Step-by-step explanation:

Homeostasis may be defined as the phenomena by which living organisms maintain their internal body environment. Exothermic animals spends energy for the maintenance of homeostasis.

The humans maintain their internal body temperature irrespective of their external environment. In case of excess temperature in summer, humans maintain their internal temperature by perspiration known as sweating and dilation of the blood vessels.

Thus, the correct answer is option (D).