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Question:

Which of the following is not an example of a homeostatic mechanism?

A Weight gain when consuming excess calories
Explaination

Homeostatic mechanisms are involuntary actions by organs, glands, tissues and cells to maintain balance within the body. For example, if a person becomes dehydrated the kidneys will retain fluid by decreasing urine output. Gaining weight when consuming excess calories (which is not involuntary) does not constitute an activity that is trying to help maintain balance for the body.