Fruit flies have a diploid number of 8, and honeybees have a diploid number of 32. in which case will crossing over have greater impact on genetic variation?

The honeybees, because the more chromosomes you have, the more genetic variation results from crossing over or recombination

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