Question

Which part of the cockroach helps in flying?

Answer 1

Hint: The cockroaches have a hard exoskeleton which is made up of calcium carbonate. It has three pairs of legs which help in locomotion. The body is divided into thorax and abdomen which is coated with wax to repel water.

Complete Answer:
- The cockroach is a member of the Blattodea order which includes termites. They are the size of a thumb nail. Most species of cockroach are reddish-brown. They are attracted to light sources and are the most hardworking organisms known.
- They have a small head, compound eyes, two ocelli and long flexible antennae. The mouth parts contain mandibles for chewing, salivary glands and receptors for touch and taste.
- Body is divided into three segments of thorax and 10 segments of the abdomen. There are 3 pairs of legs which are useful in locomotion. The wings are attached to third and second thoracic segments.
- The two pairs of wings called the tegmina are tough and protective in function. The hind wings are used for flying. These wings have multiple cross veins and branching longitudinal veins. They have spiracles for respiration.

Note: The cockroach uses its wings very occasionally. Their large body mass and flight wings are not conductive to speed. They have the three pairs of legs in which the front legs are shorter than the hind legs. They have spines on the legs which help them walk in the difficult terrain.