Concept:The eye and the ear contain different specialised structures.
Explanation:The cochlea is a spiral structure found in the inner ear.
It helps to convert sound vibrations into nerve impulses.
Thus, the cochlea is not part of the eye.
The conjunctiva is a thin membrane covering the front of the eye and the inner eyelids.
The cornea is the transparent outer layer at the front of the eyeball.
The iris is the coloured part of the eye that controls the size of the pupil.
Since the option that belongs to the ear is the cochlea, it is the structure that is not part of the eye.
Answer:A. Cochlea