Final answer:
The average normal oral resting body temperature is usually around 37.0 °C (98.6 °F), with a general normal range of 36.5 to 37.5 °C (97.7 to 99.5 °F). Extreme body temperatures, outside of the survival range of 24 °C to 44 °C (75 °F to 111 °F), can signify health issues.
Step-by-step explanation:
The average range of the body's oral resting temperature typically falls within a normal range from around 36.5 to 37.5 °C (97.7 to 99.5 °F). However, the human body can survive within a wider temperature range, from about 24 °C to 44 °C (75 °F to 111 °F). The setpoint for human body temperature is around 37 °C (98.6 °F), and variations from this may indicate various medical conditions such as fevers or infections.
Factors like individual differences, time of day, and measurement method can also affect body temperature readings. The body maintains its temperature through a process called thermoregulation, which is crucial for sustaining life.