When a doorbell rings, what part of the body vibrates?
organ legs nerves arm cells eye eardrum Limbs
A B C D E F G H
When the sound waves hit the eardrum in the middle ear, the eardrum starts to vibrate.
A doorbell's ring makes the eardrum vibrate. 
When a doorbell rings, what part of the body vibrates? (A) organ (B) legs (C) nerves (D) arm (E) cells (F) eye (G) eardrum (H) Limbs