Question

Which of the following is not an example of homeostasis?

a) After plunging into icy-cold water, Gary's core body temperature rapidly drops.
b)While exercising, Julia's heart rate and breathing increase to balance the increased oxygen use by her muscle cells.
c) On a hot day, to prevent dehydration, Martin’s kidneys remove very little water from his blood.
d)After eating a candy bar, April's pancreas secretes insulin, which removes the excess blood sugar.

Answer 1

a) After plunging into icy-cold water, Gary's core body temperature rapidly drops.

Step-by-step explanation:

Homeostasis is the process by which our bodies find and reach equilibrium, could be physical or chemical, when you get into icy-cold water, for there to be homeostasis your body should get hotter in order to keep its normal temperature, but often the body tempereature just drops because there´s not much the vody can do against that.

Answer 2

The best answer to the question you have presented above is letter a. The statement that is NOT an example of homeostasis is 'After plunging into icy-cold water, Gary's core body temperature rapidly drops'. This is because it should increase rather than decrease.