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Question

Corpus callosum occurs in the brain of

A
Pigeon
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B
Frog
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C
Crocodile
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D
Elephant
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Solution

The correct option is D Elephant
The corpus callosum is present only in placental mammals and hence the only elephant from the above options classify in this category. It is presently under the cerebral cortex in the brain. Pigeon, frog, crocodile are avians, amphibians, and reptilians respectively. So corpus callosum is absent in these three.
So the correct answer is 'Elephant'.

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