What do genetics traits have to do with survival?

It gives the characteristic trait of the organisms that can be good or bad to the survival of it environment. But to go into depth as each organisms die and the survival of each one reproduce it will come out as a natural selected to the survival of the environment aka Survival of the Fittest. :)

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