Zoology - Structural Organisation in Animals Question with Solution | TestHub

Cockroaches are a type of insect belonging to the phylum Arthropoda and these are dioecious.
The first pair of wings arises from mesothorax and the second pair from metathorax. Forewings (mesothoracic) called tegmina are opaque dark and leathery and cover the hind wings when at rest. The hind wings are transparent, membranous and are used in flight.