Reappearance of certain ancestral characters which had either disappeared or were reduced during evolution is called ______
A
atavism
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B
vestigial organ
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C
analogous organ
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D
homologous organ
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Solution
The correct option is A atavism Atavism is the reappearance of certain ancestral characters which had either disappeared or were reduced during evolution. Ability to move pinna is an example of atavism.