Write a note on the mouthparts of a cockroach.

(N/A) The mouthparts of a cockroach are of the biting and chewing type. They consist of the following structures:
$1$. $A$ labrum (upper lip).
$2$. $A$ pair of mandibles.
$3$. $A$ pair of maxillae.
$4$. $A$ labium (lower lip).
Additionally,a median flexible lobe,known as the hypopharynx,acts as a tongue and lies within the cavity enclosed by the mouthparts.