A scientist investigates an automatic control system that helps to keep a person's body temperature close to its optimum.
The results are shown in the table.
| Test | Result |
|---|---|
| The receptor is exposed to a change in body temperature | The receptor detects the stimulus |
| The coordination centre receives information from the receptor | A signal is sent towards a muscle |
| The signal from the coordination centre reaches the muscle | The muscle does not contract |
| The same signal is applied directly to the muscle | The muscle does not contract |
Use the results to explain which part of the control system is faulty and predict how the fault affects the control of body temperature.
76 exam-style questions on AQA GCSE Biology 5.1 Homeostasis, covering 5.1 Homeostasis. Each one has a worked solution and a mark scheme showing where the marks go.