Which one of the following characters is not typical of the class mammalia?
Correct answer: C. Ten pairs of cranial nerves
- A. Thecodont dentition
- B. Alveolar lungs
- C. Ten pairs of cranial nerves
- D. Seven cervical vertebrae
Explanation
Mammals have twelve pairs of cranial nerves. Ten pairs of cranial nerves are present in fish and amphibians. Reptiles and birds also have 12 pairs of cranial nerves.
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