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Question

In the rabbits, the muscles which move the pinnae are

A
Absent
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B
Vestigial
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C
Non-functional
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D
Functional
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Solution

The correct option is D Functional
The ears of a rabbit have more developed muscles than those of humans, and therefore rabbits have the capability to move their ears to better hear potential threats. Humans and other primates such as the orangutan and chimpanzee, however, have ear muscles that are minimally developed and non-functional.

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