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.

Column-$I$	Column-$II$ and Column-$III$
$(i)$ Vertebrate brain	Analogous organ,Divergent evolution
$(ii)$ Vertebrate heart	Homologous organ,Divergent evolution
$(iii)$ Flipper of dolphin and penguin	Homologous organ,Divergent evolution

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

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Fossils are ..........

The diagram given below indicates:

Which of the following provides the most satisfactory evidence for organic evolution?

Find out the correct match from the following table $:-$

Column-$I$ Column-$II$ and Column-$III$

$(i)$ Vertebrate brain Analogous organ,Divergent evolution

$(ii)$ Vertebrate heart Homologous organ,Divergent evolution

$(iii)$ Flipper of dolphin and penguin Homologous organ,Divergent evolution

The term for similarity in organ structure seen in organisms with great diversity is known as:

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