Question

Select the incorrect statement w.r.t nervous system of cockroach.

• A. Brain is represented by sub-oesophageal ganglion
• B. Nervous system is spread throughout the body
• C. Three ganglia lie in the thorax and six in the abdomen
• D. It consists of a series of fused segmentally arranged ganglia joined by paired longitudinal connectives on the ventral side

Answer 1

The correct option is A Brain is represented by sub-oesophageal ganglion

Brain is represented by supra-oesophageal ganglion, which supply nerve fibres to eyes and antennae.

The nervous system of cockroach consists of a series of fused, segmentally arranged ganglia joined by paired longitudinal connections on the ventral side. The nervous system is spread throughout the body.