When changing from a low power magnification of 100x to a high power of 1000x, by what fraction will the field of view change?

Going to high power on a microscope decreases the area of the field of view. The field of view is inversely proportional to the magnification of the objective lens.

The correct answer is  b) 

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.