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Venom of cobra attacks on -

  • A.Circulatory system
  • B.Digestive system
  • C.Respiratory system
  • D.Nervous system

Answer: D

Cobra venom attacks the nervous system.

It is neurotoxic: the toxins block the acetylcholine receptors at the neuromuscular junction, so the muscles cannot be made to contract and the victim dies of respiratory paralysis. Viper venom, by contrast, is haemotoxic and attacks blood and tissue.

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