Question

Choose the correct statement with reference to neural system of cockroach.

• A. If head of cockroach is removed, it may live for few days because head holds only a bit of a nervous system
• B. The cockroach has only four ganglia in thorax
• C. The supra-oesophageal ganglion of cockroach is not considered as its brain
• D. The nervous system of cockroach is not spread throughout the body

Answer 1

The correct option is A If head of cockroach is removed, it may live for few days because head holds only a bit of a nervous system

Cockroach has three ganglia in thorax and 6 ganglia in abdomen. The brain of cockroach is represented by supra-oesophageal ganglia. Nervous system of cockroach is spread throughout the body.