In a hot summer after noon, if your body's Homeostatic machinery keep your internal temperature quite lower than that of external than this is an example of____________?
Correct answer: B. Negative feed back
- A. Positive feed back
- B. Negative feed back
- C. Feed back
- D. Osmoregulation
Explanation
Negative feedback opposes a change: when body temperature rises, mechanisms such as sweating and vasodilation lower it toward the normal set point. Students may choose positive feedback because the response follows a temperature change, but positive feedback amplifies the original change rather than correcting it.
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