Question

question 22
when a persons body temperature rises above normal, the overall response is to release heat by sweating to lower the temperature.
this scenario is an example of which of the following?
stimulus
control center
positive feedback loop
negative feedback loop

Explanation:

• Stimulus: A stimulus is a change in the environment (internal or external) that can be detected. In this case, the rise in body temperature is the stimulus.
• Control center: The control center (like the hypothalamus in the body) receives information from sensors (receptors) and determines the response. But the question is about the overall response type, not just the control center.
• Positive feedback loop: In a positive feedback loop, the response enhances the original stimulus. For example, during childbirth, contractions lead to more contractions. Here, the goal is to lower the temperature (oppose the stimulus), so it's not a positive feedback loop.
• Negative feedback loop: In a negative feedback loop, the response opposes the stimulus. When body temperature rises (stimulus), sweating (response) cools the body (opposes the temperature increase). This fits the scenario.

Answer:

Negative feedback loop