Which of the following would increase the rate of heat exchange between an animal and its environment?

a) blubber or fat layer
b) feathers or fur
c) vasoconstriction
d) countercurrent heat exchanger
e) wind blowing across the body surface

E

Explanation:

Wind blowing across the body surface increases transpiration of the skin. The winds reduce the local air pressure above the skin allowing the sweat to evaporate faster. As the sweat evaporates, it carries with it heat from the body. This cools the skin much faster than on a non-windy day. This is why a breeze feels so cool on the human skin on a hot day.

d. changes in climate and historical records

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