The bony, spiral-shaped, fluid-filled sense organ used for hearing is the

Generally the ear, and more specifically the cochlea

The ear is composed of 3 parts namely:
 1. The outer ("external") ear, composed of the pinna and ear canal, 
 2. The middle ear, composed of tympanic cavity and three ossicles, 
 3. The inner ear, composed of semicircular canals, the utricle, saccule, and the cochlea. 

Hearing happens initially by allowing the pinna of your ear to focus the sound. Then, by means of the ear canal and the ossicles, the sound is sent to the fluid-filled eardrum, which begins to vibrate. The vibrations are sent to the snail-shell looking component of the inner ear called the cochlea. The cochlea senses these vibrations and converts them to nerve impulses to be interpreted by the brain, making you "hear" the sound. 

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.