An insect whose mouthparts are biting and chewing type in the larval condition, while they are siphoning type in the adult and this insect gives and economically important substance during yet another stage of its development. The insect is
Or
Which of the following insects is useful for us

Options

A. Musca
B. Bombyx
C. Pheretima
D. Periplaneta

Answer

B

Explanation

The silkworm Bombyx mori produces the silk of commercial importance. It is the caterpillar of a moth whose cocoon is used to make silk.