The table shows temperatures measured while a person moves from a cool room to a warm room.
Table
| Time in minutes | Air temperature in ∘C^\circ\mathrm{C}∘C | Core body temperature in ∘C^\circ\mathrm{C}∘C |
|---|---|---|
| 0 | 18 | 36.8 |
| 10 | 26 | 37.0 |
| 20 | 30 | 37.1 |
| 30 | 30 | 36.9 |
Which conclusion is supported by the table?
Homeostasis fails because core temperature rises before it falls.
Homeostasis limits core temperature changes despite changing air temperature.
Homeostasis keeps core temperature exactly constant throughout the investigation.
Homeostasis causes core temperature to rise by the same amount as air temperature.
44 exam-style questions on Edexcel GCSE Biology 7.3 Homeostasis and thermoregulation, covering 7.3.1 Importance of a constant internal environment, 7.3.2 Importance of homeostasis, 7.3.3a Thermoregulation via the skin and hypothalamus, and 7.3.3b Vasoconstriction and vasodilation in thermoregulation. Each one has a worked solution and a mark scheme showing where the marks go.