Question

gelatinous structure in the cochlea containing the hair cells that serve as auditory receptors
testis of corti
organ of corti
ampulla of corti
caelom of corti
gonad of corti

Explanation:

The organ of Corti is a structure in the cochlea that contains hair cells which act as auditory receptors. The other options are incorrect:

• Testis is related to male reproductive system (not auditory).
• Ampulla is part of semicircular canals (balance - related, not main auditory receptor structure in cochlea).
• Coelom is a body cavity (not relevant here).
• Gonad is a reproductive gland (not auditory).

Answer:

organ of Corti