Let’s solve this step by step.
We are given a diagram that shows how the body responds to a rise in temperature using negative feedback. There are four boxes labeled: Stimulus, Receptor, Signal, and Response. Each box has a red dot next to it, and we need to match each red dot with the correct description from the list at the bottom.
The descriptions are:
- Skin and brain sense change
- Rise in body temperature
- Skin makes sweat and blood vessels dilate
- Command from the brain
Also, there’s a note: “Response leads to a decrease in body temperature.” And an arrow going back from “Response” to “Receptor” labeled “Negative Feedback.”
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Step 1: Understand what each part means in a negative feedback loop for body temperature.
In biology, when your body gets too hot (stimulus), sensors (receptors) detect it, send a signal to the brain, which sends commands (signal) to effectors (like skin) to cool you down (response). Then, because the response lowers the temperature, it feeds back to reduce the original stimulus — that’s negative feedback.
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Step 2: Match each box to the correct description.
Start with
Stimulus → This is what starts the whole process. The problem says “Rise in body temperature” is one of the options. That makes sense — if your body temp goes up, that’s the trigger. So:
→ Stimulus = Rise in body temperature
Next,
Receptor → These are the things that detect the change. The option “Skin and brain sense change” fits here — they’re the sensors that notice the temperature went up.
→ Receptor = Skin and brain sense change
Then,
Signal → After the receptor detects the change, it sends information to the control center (brain), which then sends out instructions. The option “Command from the brain” matches this — it’s the message sent to tell the body what to do.
→ Signal = Command from the brain
Finally,
Response → This is what the body actually does to fix the problem. The option “Skin makes sweat and blood vessels dilate” is exactly what happens when you’re hot — sweating cools you, and dilated blood vessels release heat.
→ Response = Skin makes sweat and blood vessels dilate
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Step 3: Double-check with the feedback loop.
The diagram says: “Response leads to a decrease in body temperature.” That matches — sweating and vasodilation lower body temp.
And the arrow from Response back to Receptor is labeled “Negative Feedback” — meaning once the temperature drops, the receptors stop sending signals because the problem is fixed. Perfect.
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Final Answer:
Stimulus → Rise in body temperature
Receptor → Skin and brain sense change
Signal → Command from the brain
Response → Skin makes sweat and blood vessels dilate
Parent Tip: Review the logic above to help your child master the concept of homeostasis worksheet middle school.
