Final answer:
The student chose a temperature of 37°C for the water bath because it is the same temperature as the human body.
Step-by-step explanation:
The student chose a temperature of 37°C for the water bath because it is the same temperature as the human body. The human body needs to be maintained at a specific temperature, and many of the reactions that occur in our bodies depend on enzymes. Enzymes are catalysts that enable these reactions to occur at the body temperature. Therefore, by using a water bath at 37°C, the student ensures that the conditions are optimal for the reactions they are studying.