A researcher investigated how the body responds to two changes at the same time. A person ate a snack and entered a warm room. After 20 minutes, the person returned to their usual room and did not eat or drink anything else.
Before the investigation, both internal conditions were at the person's optimum levels.
| Internal condition | Before the investigation | After 20 minutes | After 90 minutes |
|---|---|---|---|
| Blood glucose concentration in mmol/L | 4.9 | 6.4 | 5.0 |
| Core body temperature in °C | 36.9 | 37.4 | 37.0 |
Explain how the results provide evidence that both internal conditions were regulated by homeostasis.
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.