A person infected with the human immunodeficiency virus (HIV) may not have any symptoms for a period of time. During this period the virus
affects the body by doing which of the following?
a The virus produces toxins that weaken immune cells and prevent them from reproducing.
Ob The viral genes are dormant while being copied with the host cell's genetic material
The virus uses nutrients meant for immune cells to fuel its own cellular respiration
The virus changes the identity of the nucleotides of immune cells to prevent the immune system from functioning normally,

Digestion because it removes waste

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.