A scientist studies a small mammal on two occasions. The mammal has enough oxygen and glucose available on both occasions.
Shivering is the repeated contraction of muscles.
| Temperature of enclosure (°C) | Oxygen uptake (cm³ kg⁻¹ min⁻¹) | Time spent shivering (%) | Body temperature after 30 minutes (°C) |
|---|---|---|---|
| 22 | 18 | 0 | 37.0 |
| 6 | 44 | 76 | 37.0 |
Explain how the results show that respiration helps the mammal maintain its body temperature in the colder enclosure.
98 exam-style questions on Edexcel GCSE Biology 8.3 Respiration, covering 8.3.1 Aerobic and anaerobic respiration. Each one has a worked solution and a mark scheme showing where the marks go.