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NEET2006BotanyAnimal KingdomActual

All mammals without any exception are characterised by

Options

  1. Aviviparity and biconcave red blood cells
  2. Bextra-abdominal testes and a four chambered heart
  3. Cheterodont teeth and 12 pairs of cranial nerves
  4. Da muscular diaphragm and milk producing glands.

Correct answer

D. a muscular diaphragm and milk producing glands.

Step-by-step solution

All mammals without any exception are characterized by a muscular diaphragm and milk producing glands.

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