Consider the following experiment. first, large populations of two mutant strains of escherichia coli are mixed, each requiring a different, single amino acid. after plating them onto a minimal medium, 45 colonies grew. which of the following may explain this result?
a) the colonies may be due to back mutation (reversion).
b) the colonies may be due to recombination.
c) either a or b is possible.
d) neither a nor b is possible.

The answer is c hope this

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.