At pupal stage silkworms are killed to get fibres .Why give reason ?

But in the fabric industry, silk is mass produced through the breeding and domestication of silkworms on what are essentially moth factory farms. When the caterpillars enter the pupa stage of their development, their cocoons are plunged into boiling water. This kills the silkworms and begins to unravel the longer fibers.

Explanation:

In the life cycle of the silkworm the silkworm is killed at the stage of pupa because pupa is covered with silk and we kill silkworm to obtain silk fibres from them.

Explanation: Hope this helps

an adaptation is a change or process by which an organism takes to be better suited for its environment. for example; migration is a behavioral adaptation, this is needed because birds are not built to last extremely cold climates. there are different adaptations because there are different species needing to adjust to different things, bears don't migrate; they hibernate.