Shortly after starting his new job as an editor and writer, Mark begins to complain of pain in the neck and shoulders. Which of the following positions are most likely to have led to his discomfort

The answer to this will be from your lab notes/procedure. it would be best to ask another student who participated in the lab as we do not know what was done, what enzyme or if the temperature is celsius or fahrenheit. if i were to guess though i'd say the rate stopped due to enzyme denturing at high temperature