In higher vertebrates (reptiles, birds, mammals) there are 12 pairs of cranial nerves which fish and ambhibian have 10 pairs of cranial nerves. Alveolar lungs, seven cervical vertebrae, and thecodont dentition are typical of class Mammalia.
Which one of the following characters is not typical of the class mammalia?
Held on 30 Apr 2005 · Verified 9 Jul 2026.
thecodont dentition
alveolar lungs
ten pairs of cranial nerves
seven cervical vertebrae.
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