Apopulation of crocodiles is in hardy weinberg equilibrium which condition must be true

no new mutations have occurred

genetic drift is taking place

natural selection is causing changes in allele frequencies

new individuals are migrating into the population

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