Some persons can move their pinnae. This abil | vedclass

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(B) The correct answer is $B$. Atavism is the reappearance of certain ancestral characters that had either disappeared or were reduced during the cour

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Atavism

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(B) The correct answer is $B$. Atavism is the reappearance of certain ancestral characters that had either disappeared or were reduced during the course of evolution. In humans,the ability to move the pinnae (external ear) using vestigial muscles is an example of atavism,as these muscles were functional in our ancestors. Other examples of atavism in humans include the presence of a short tail (coccyx),exceptionally long dense hair,and additional mammae.

Some persons can move their pinnae. This ability is imparted by

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