Which of the following parts is not associate | vedclass

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(D) The nervous system of a cockroach consists of a series of fused segmental ganglia joined by paired longitudinal connectives on the ventral side.Th

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Abdominal ganglia

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(D) The nervous system of a cockroach consists of a series of fused segmental ganglia joined by paired longitudinal connectives on the ventral side.Three ganglia lie in the thorax and six in the abdomen.The nervous system is spread throughout the body.The head holds a bit of a nervous system while the rest is situated along the ventral (belly-side) part of its body.So,now you understand that the supraoesophageal ganglion (also called the brain),the suboesophageal ganglion,and the circum-oesophageal commissures together form the nerve ring around the oesophagus.The abdominal ganglia are located in the abdomen and are part of the ventral nerve cord,not the nerve ring.

Column $I$	Column $II$
$(a)$ Grinding of the food particles	$(i)$ Hepatic caecae
$(b)$ Secrete gastric juice	$(ii)$ $10^{\text{th}}$ segment
$(c)$ $10$ pairs	$(iii)$ Proventriculus
$(d)$ Anal cerci	$(iv)$ Spiracles

Which of the following parts is not associated with the nerve ring in a cockroach?

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