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Question
Which one of the following characters is not typical of the class Mammalia?
Which one of the following characters is not typical of the class Mammalia?
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Solution
The correct option is C Ten pairs of cranial nerves
List of some distinct characteristics of mammals are:
Mammals possess different types of teeth, that means they are heterodont. Teeth are present in the bony socket, thus they are known as thecodont.
They possess seven cervical vertebrae. Their skull is dicondylic, that means skull which is connected to the body with two articulatory condyles(occipital condyles).
Their brain is well developed and is divided into cerebrum, cerebellum and medulla.
Mammals possess 12 pairs of cranial nerves.
So, the incorrect statement is option 'c'.
List of some distinct characteristics of mammals are:
Mammals possess different types of teeth, that means they are heterodont. Teeth are present in the bony socket, thus they are known as thecodont.
They possess seven cervical vertebrae. Their skull is dicondylic, that means skull which is connected to the body with two articulatory condyles(occipital condyles).
Their brain is well developed and is divided into cerebrum, cerebellum and medulla.
Mammals possess 12 pairs of cranial nerves.
So, the incorrect statement is option 'c'.
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