Astudent took these notes in class:

-inner ear
-connected to the stirrup and auditory nerve
-shell-like and filled with fluid
-changes vibrations into signals

which would be the best title for these notes?

auditory nerve
cochlea
hammer
ear canal

Karen is waiting by the lockers before school for her friend richard. they had agreed to look over the history review sheet together to be ready for the test later that day. richard shows up late with uncombed hair and wrinkled clothes. karen: "you're five minutes late and you look like a wreck! " richard: (slams his locker) "you know, i don't have time for this." karen: "fine! figure out the test on your own! "