I had the following question on an exam of mine and I got it wrong, so I was wondering if someone could help explain the reasoning to me. Below I list my explanation.
An overheated and sick dog in a hot environment will have an impaired thermoregulatory response when its
(A) evaporative heat loss increases
(B) metabolic heat production decreases
(C) body temperature increases to match the environmental temperature
(D) blood vessels near its skin increase vasoconstriction
So here's how I approached this: A and B are clearly incorrect, as they aid the thermoregulatory response of the animal by allowing it to lose excess heat.
Thus, it comes down to C and D. I chose D because I thought that since vasoconstriction traps more of the heat inside the body, it would be counterproductive to what the dog actually needs (vasodilation). I'm assuming that the correct answer choice is C, but could someone please explain it to me?
Thanks in advance to all who reply :)