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B
Reptilia
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C
Aves
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D
Mammalia
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Solution
The correct option is D Mammalia
The ear pinna is the part of the ear that is visible outside the head. It is also called the auricle. It collects the sound waves and directs them into the inner ear where they are sent to the brain for comprehension. It is generally found in mammals but is absent in Aves, amphibians, and reptiles.