The cockroach is an/a ...... .

Piercing and sucking type of mouthparts are found in .........

How does $Periplaneta\ americana$ differ from $Blatta\ orientalis$?

Which of the following statement$(s)$ is/are correct?
$(i)$ Cockroaches are brown or black bodied animals that are included in class $Insecta$ of phylum $Arthropoda$.
$(ii)$ Males bear a pair of short,thread-like anal styles which are absent in females.
$(iii)$ The heart of a cockroach consists of an elongated muscular tube lying along the mid-dorsal line of the thorax and abdomen.
$(iv)$ The nymph grows by moulting about $13$ times to reach the adult form.

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.

The wings of a cockroach primarily help in ...........