True or false: blood alcohol level can be decreased by drinking coffee

Technically, it does, but what help it does bring is only a placebo. You've still had the same amount of alcohol and the coffee doesn't interact with the alcohol. The best it can do is to trick your brain that you are closer to sobriety, or distract you as your body filters out the alcohol.

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.

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