Describe biting and chewing type of mouthparts by taking example of cockroach.

The following are the joints of each leg of a cockroach
I) Tibia
II) Coxa
III Tarsus
IV) Femur
V) Trochanter

Arrange these in order.

Identify the correct statement with reference to the nervous system of the cockroach:
a) The nervous system of cockroach is called as autonomic nervous system.
b) There are $3$ thoracic and $6$ abdominal ganglion.
c) Sub-oesophageal ganglion controls the movements of mouth parts.
d) The $6^{\text{th }}$abdominal ganglion innervates the $6^{\text{th }}$abdominal segment.

The correct answer is

Match the following:

The correct match is