Which of the following is NOT a characteristi | vedclass

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(C) Mammals are characterized by several unique features such as the presence of mammary glands,hair on the skin,and a diaphragm. Regarding the given

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$10$ pairs of cranial nerves

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(C) Mammals are characterized by several unique features such as the presence of mammary glands,hair on the skin,and a diaphragm. Regarding the given options: $1$. Thecodont dentition (teeth embedded in sockets) is a characteristic feature of mammals. $2$. Alveolar lungs are present in mammals for efficient gas exchange. $3$. Mammals possess $12$ pairs of cranial nerves,not $10$. Amphibians and reptiles possess $10$ pairs of cranial nerves. Therefore,this is not a characteristic feature of mammals. $4$. Most mammals have $7$ cervical vertebrae,regardless of the length of their neck. Thus,the correct answer is $C$.

Which of the following is $NOT$ a characteristic feature of mammals?

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