A volunteer participated in a study tracking core body temperature during physical activity. They cycled on a stationary bicycle in a warm climate-controlled room at 26 ∘C26\ ^\circ\text{C}26 ∘C for 40 minutes.
| Time (minutes) | Core Body Temperature (∘C^\circ\text{C}∘C) |
|---|---|
| 0 | 36.90 |
| 10 | 37.35 |
| 20 | 37.80 |
| 30 | 38.00 |
| 40 | 38.10 |
Explain the change in core body temperature from 0 minutes to 30 minutes.
