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483

Q:

If the head of cockroach is removed, it may live for few days because :

  • 1
    The supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen.
  • 2
    The cockroach does not have nervous system.
  • 3
    Head holds a small proportion of nervous system while restis situated along ventral part of its body
  • 4
    The head holds 1/3rd of the nervous system while the rest is situated along dorsal part of its body.
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Answer : 4. "The head holds 1/3rd of the nervous system while the rest is situated along dorsal part of its body."

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