The organ responsible for breathing is your lungs.
The organ responsible for hearing is the ear. The ear is composed of different nerves and passageways that conduct sound.
the eyes are responsible for sight
skin
vocal chords
your intestines
the heart
the anther
adrenal gland
The kidneys
There is no set person who is responsible for maintaining a church organ. However, one can assume that the church organist, the reverend or janitorial staff maintains the church organ. It is different for every church and there is no definite answer.
The main sensory organ responsible for the sense of smell is the olfactory system, which includes the olfactory epithelium in the nasal cavity.
The small intestine is responsible for the absorption of nutrients.