Q...................... is also called as brain of cockroach.

The nerve ring of the cockroach's central nervous system is made of the supra-oesophageal ganglia, the circum-oesophageal connectives, and the sub-oesophageal ganglion. The chapter specifically states that the paired supra-oesophageal (cerebral) ganglia, lying in the head above the oesophagus between the antennal bases, are collectively known as the brain. The su …

Recall the direct textbook statement that the supra-oesophageal ganglia ar …

• Confusing the supra-oesophageal ganglion (the true brain) with the sub-oesophageal ganglion, which lies below th …