Question

Nervures occur in ______ of cockroach.

• A. Nerve fibres
• B. Wings
• C. Tarsus
• D. Femur

Answer 1

Answer: (B)

The wings are supported by a network of fine sclerotized tubes called veins or nervures. Haemolymph, nerves, and tracheae enter the nervures of wings. The hind wings are thin and they help in flight. The forewings are thick and they do not help in flight, but only cover and protect the hind wings when the insect is not flying. these forewings are called tegmina. Wings are moved by the dorsoventral and longitudinal muscles.

So the correct answer is "Wings".