Assertion :The duck billed Platypus and the spiny ant eater, both are egg laying animals yet they are grouped under mammals. Reason: Both of them have seven cervical vertebrae and 12 pairs of cranial nerves.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The duck billed platypus and the spiny anteater, both are egg laying animals. They are primitive oviparous reptiles-like mammals. They are included in subclass Prothotheria of class Mammalia. Both of them have 12 pairs cranial nerves and 7 cervical nerves.
Thus, the correct answer is option A.

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