List the three periods of prenatal development.
Definitions:
Cochlea
Spiral-shaped structure of the vertebrate inner ear containing the sensory receptors for hearing.
Inner Ear
Portion of the ear consisting of a vestibule, semicircular canals, and the cochlea where equilibrium is maintained and sound is transmitted.
Aqueous Humor
A clear fluid that fills the space in the front part of the eye between the lens and the cornea.
Vitreous Humor
The clear gel that fills the space between the lens and the retina of the eyeball.
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