Because the Outer Ear Has No "Active Elements

Question

Because the outer ear has no "active elements,"
A) it can serve as an amplifier but not a filter.
B) it can serve as both filter and amplifier.
C) it can process only passive sounds.
D) it can serve as a filter but not an amplifier.

Accepted Answer

The outer ear can serve as a filter by shaping the sound that enters the ear, but it does not amplify sound because it lacks active elements like muscles or electronic components.