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

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C Rationale: Weight gain when consuming excess calories does not represent a homeostatic mechanism, as it is a result of energy imbalance rather than a regulatory response to maintain internal stability.

Homeostatic mechanisms are processes that the body uses to regulate its internal environment within narrow limits, such as temperature, blood pressure, and glucose levels. Shivering is a response to cold that helps raise body temperature, increasing heart rate compensates for low blood pressure to maintain circulation, and insulin secretion lowers blood sugar levels after eating. In contrast, weight gain occurs when there is a surplus of energy intake over energy expenditure, which does not actively restore balance but rather reflects a state of imbalance.

ATI TEAS 7 Science Practice Test

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

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