Which scientist gave the name $Periplaneta$?

The process of conversion of a small cockroach into an adult cockroach is called as

The type of egg found in a cockroach is known as?

The following figure shows the external features of a cockroach with a few structures labeled as $A, B, C, D$,and $E$. Identify the correct labels.

Sclerites are joined to each other by which structure in a cockroach?

Segments in the head of a cockroach - $P$
Segments in the thorax of a cockroach - $Q$
Segments in the abdomen of a cockroach - $R$
Select the correct option for $P, Q, R$.