The external ear of a mammal is ....

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Question

(D) The external ear of a mammal is characterized by the following points:$1$. The visible outer part of the ear is known as the pinna.$2$. Monotremes

Vedclass · Accepted Answer

all of the above.

Vedclass · Answer

(D) The external ear of a mammal is characterized by the following points:$1$. The visible outer part of the ear is known as the pinna.$2$. Monotremes,such as the platypus,lack an external pinna.$3$. Many mammals,such as horses and cows,possess specialized muscles that allow them to rotate their ears in various directions to capture sound more effectively.Therefore,all the given statements are correct,making $D$ the correct option.

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