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Question


The part of the ear that vibrates in response to sound waves is:


Options:
A .   Pinna 
B .   Cochlea
C .   Eustachian tube  
D .   Eardrum
Answer: Option D
:
D

Ear drum is the part of the ear that vibrates in response to the sound waves. The eardrum is a thin flap of skin that is stretched tight like a drum and vibrates when sound hits it. These vibrations move the tiny bones of the middle ear which send vibrations to the inner ear.



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