Question

what is a cocoon? name the fibre of which a cocoon is made ​

Answer 1

$\huge \text{Hey mate!!}$

✒The cocoon is the last second stage in the life cycle. First a butterfly lay eggs and after sometime they convert into catarpiller and then that it will convert into cocoon and at last it becomes a Beautiful Butterfly.

✒Cocoon is made up of Silk fibre.

Hope it will help you ❤❤

Answer 2

Moth pupae are usually dark in color and either formed in underground cells, loose in the soil, or their pupa is contained in a protective silk case called a cocoon. A cocoon is a silk case that the larvae of moths, and sometimes other insects, spin around the pupa. So, the fibre is silk.