Your doctor tells you that you and your twin sister have the same basal metabolic rate (bmr). you live independent lives and do your own thing, so how can that be? which factor is likely the reason?
1. your age 2. your appetites 3.(your required daily values) 4your hunger

Yes . The answer is #3

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