The correct answer is B. Pinna because auris externa is the external portion of the ear, which is called auricle ( also known as pinna ).
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Answer:
The answer is because they are in free fall. In a vacuum, gravity causes all objects to fall at the same rate. The mass of the object does not matter. If a person drops a hammer and a feather, air will make the feather fall more slowly. But if there were no air, they would fall at the same acceleration.
Explanation: