In cockroach, the absorbed nitrogenous wastes by Malpighian tubules are converted into urea which is excreted out thorough midgut.

Match the following:

The correct match is

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

(v) Where do you find Malpighian tubules?

Mention the function of the Malpighian tubules.