Question

Mouth parts of cockroach is
A. Piercing and sucking
B. Sucking and siphoning
C. Biting and chewing
D. Sponging

Answer 1

Hint: Cockroaches are recognized instantly by most of the people.They are brown or black in colour.Males have wings,whereas female cockroaches have no wings.

Complete step by step answer:
An opening on the head of the cockroach is called mouth.It is surrounded by a pair of mandibles,first maxillae,labium,hypopharynx and labrum.The mouth part of the cockroach is for biting and chewing.
The labium and labrum forms the lip.The upper lip or labrum is broad and roughly rectangle in shape.It hangs from the front of head on lower side.On the floor of the mouth is tongue like structure called hypopharynx.
Mandibles are pairs of hard,strong,dark coloured larger structures on one side with jagged inner edges.They move horizontally and crush the food in between them.
Maxillae are a pair of structures outside and behind mandibles.
Labium is formed by fusion of a second pair of maxillae.This forms the lower lip and is sensory in nature.

The correct answer is option (c) Biting and chewing.

Note:
Cockroaches can live for a week without its head due to their open circulatory system they breathe through their little holes. A cockroach without mouth dies as it can’t drink water.When submerged in water they can hold their breath for forty minutes. Cockroaches are said to have originated like 280 million years ago. They can live without food for one whole month.They are the most adaptable creatures on earth. Control of this species is for health and safety reasons.