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NEET2005BotanyAnimal KingdomActual

Which one of the following characters is not typical of the class mammalia?

Options

  1. Athecodont dentition
  2. Balveolar lungs
  3. Cten pairs of cranial nerves
  4. Dseven cervical vertebrae.

Correct answer

C. ten pairs of cranial nerves

Step-by-step solution

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.

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