Name two scientific issues that involve ethics

Embryonic stem cell research, it is very important and revolutionary for human health

pharmaceutical research involves drug testing on animals then clinical trials on human volunteers.

Toxicology research is the testing of chemicals for toxic, corrosive or detrimental effects still currently on many animals like mice, rats, rabbits and Guinea pigs.

Stem cell research, cloning

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.