Sam is next in line for an interview. he seems to be nervous and tense, and he is sweating profusely.
which sub-system of his nervous system is responsible for the way that sam feels?
enteric nervous system
parasympathetic nervous system
sympathetic nervous system

Sam's sub-system of his nervous system that is responsible for the way that Sam feels is the "Sympathetic Nervous System." It is one of the two main divisions of the autonomic nervous system that activates when there is fight or flight response.

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.

Ithink its c hope it : )