Which of the following is an example of negative feedback?
A) An increase in normal body temperature triggers heat loss through enhanced blood flow to the skin and increased sweating.
B) An increase in ambient room temperature triggers the thermostat to turn on the heater.
C) A severe cut triggers accelerated blood clotting until the bleeding stops.
D) Increased blood sugar stimulates the release of a hormone from the pancreas that stimulates the liver to release blood sugar.
E) An increase in body temperature triggers a neural response that initiates physiological changes to increase body temperature.

Question

Quizplus · Accepted Answer

Negative feedback is the process of counteracting a change or deviation from a set point in order to maintain homeostasis. In this example, an increase in body temperature triggers a response that results in heat loss and sweating to bring body temperature back to the set point, illustrating negative feedback. The other options describe positive feedback, where a stimulus or change is amplified rather than counteracted.

Which of the Following Is an Example of Negative Feedback