Question

consider the human bodys response to an increase in body temperature, such as during a fever.
which best describes how feedback mechanisms help maintain homeostasis?
○ the body stops all functions until the temperature returns to normal.
○ the bodys sensors primarily focus on responding to external stimuli.
○ the bodys cooling mechanism is only activated when the body senses external heat.
○ the bodys sensors detect the increase in temperature and trigger sweat glands to help cool down.

Explanation:

To solve this, we analyze each option:

• Option 1: The body doesn't stop all functions during a fever; it still performs vital processes. Eliminate.
• Option 2: Homeostasis sensors (like thermoreceptors) respond to internal changes (body temp) more than external. Eliminate.
• Option 3: Fever - related temperature increase is internal, and cooling mechanisms (sweating) activate due to internal temp, not just external heat. Eliminate.
• Option 4: Thermoreceptors (sensors) detect high body temp, then the nervous system triggers sweat glands. Sweating cools the body (evaporative cooling), helping restore normal temp (homeostasis). This matches the feedback mechanism (detection - response - correction).

Answer:

The body's sensors detect the increase in temperature and trigger sweat glands to help cool down.