Is an intimate and prolonged association between organisms of different species.

For the answer to the question above, I believe the answer is a symbiosis


It is any type of a close and long-term biological interaction between two different biological organisms, whether it is mutualistic, commensalistic, or parasitic. Hope this helps

1. aspect is nothing really because the answer is right in front of your face

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