The graph below shows how the internal body temperature of an American mink (Neogale vison) and a painted turtle (Chrysemys picta) changes as the external environmental temperature varies.
| External temperature / °C | American mink internal temperature / °C | Painted turtle internal temperature / °C |
|---|---|---|
| 5 | 38 | 6 |
| 10 | 38 | 11 |
| 15 | 38 | 15 |
| 20 | 38 | 20 |
| 25 | 38 | 25 |
| 30 | 38 | 29 |
| 35 | 38 | 34 |
Describe how the internal body temperature of the painted turtle changes in response to the external temperature.
