Brain in cockroach is represented by:
Supra pharyngeal ganglia
Sun pharyngeal ganglia
Sub oesophageal ganglia
Supra oesophageal ganglia
Consider the following four statements regarding the nervous system of a cockroach and choose the correct option indicating as true (T) or false (F) respectively.
1. The Brain of a cockroach is primitive and is made of 2 supra-oesophageal and 1 sub-oesophageal ganglia, connected by 2 circum-oesophageal connectives.
2. It has 3 thoracic and 6 abdominal, segmental ganglia.
3. All the Sensory organs are under the control of the brain directly.
4. Receptors are of tactile, chemo and photo sensory in nature