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14/09/2020 1:24 pm
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If the head of cockroach is removed, it may live for few days because
(1) the cockroach does not have nervous system.
(2) the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body.
(3) the head holds a 1/3rd of a nervous system while the rest is situated along the dorsal part of its body.
(4) the supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen.
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14/09/2020 1:26 pm
Correct option: (2) the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body.