Which of the following is NOT a characteristi | vedclass

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(B) The class $Mammalia$ is characterized by several unique features such as the presence of mammary glands,hair on the skin,and thecodont dentition.

Vedclass · Accepted Answer

Ten pairs of cranial nerves

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(B) The class $Mammalia$ is characterized by several unique features such as the presence of mammary glands,hair on the skin,and thecodont dentition. Alveolar lungs are present in mammals for efficient respiration. Cervical vertebrae are present in the neck region of mammals (usually $7$ in number). However,mammals possess $12$ pairs of cranial nerves,not $10$. $10$ pairs of cranial nerves are a characteristic feature of the class $Amphibia$ and class $Pisces$ (fishes). Therefore,the statement 'Ten pairs of cranial nerves' is not a characteristic of mammals.

Which of the following is $NOT$ a characteristic feature of the class $Mammalia$?

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