Final answer:
The acceptable temperature range in order to donate blood is generally 36.5 to 37.5 °C (97.7 to 99.5 °F) for adults.
Step-by-step explanation:
The acceptable temperature range in order to donate blood is generally 36.5 to 37.5 °C (97.7 to 99.5 °F) for adults. This is considered the normal range for body temperature. Variations in body temperature within this range are considered insignificant. It's important to maintain a normal body temperature in order to ensure the proper functioning of enzymes and chemical reactions in the body.