A) Seven cervical vertebrae
B) The codont dentition
C) Ten pairs of cranial nerves
D) Alveolar lungs
Correct Answer: C
Solution :
Ten pairs of cranial nerves are not characteristics of class-Mammalia. It is found or commonly seen in frog. In mammals, there are 12 pairs of cranial nerves. They are-olfactory, optic oculomotor, pathelic (trochlear), trigeminal, abducens, facial, vestibuloc ochlear (auditory), glossopharyngeal, vagus, spinal accessory nerve, hypoglossal.
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