Read the following statements regarding the nervous system of a cockroach: I. The nervous system of a cockroach is situated along the dorsal part of its body. II. Three ganglia lie in the thorax, and six in the abdomen. III. The supra-oesophageal ganglion supplies nerves to the antennae and compound eyes. IV. The brain is represented by the sub-oesophageal ganglion. Which of the above statements are correct?

Step-by-step solution

Statement I is incorrect because the nervous system of a cockroach (a non-chordate) is situated along the ventral side of its body, not the dorsal side. Statement II is correct as the ventral nerve cord contains segmentally arranged ganglia, with three located in the thorax and six in the abdomen. Statement III is correct because the supra-oesophageal ganglion supplies nerves to the antennae and compound eyes. Statement IV is incorrect because the brain in a cockroach is represented by the supra-oesophageal ganglio