Answer please dedo I
The life cycle of silk moth starts when a female silk moth lays eggs. The caterpillar or larvae are hatched from the eggs of the silk moth. The silkworms feed on mulberry leaves and give rise to pupa. In pupa stage, a weave is netted around by the silkworm to hold itself. After that it swings its head, spinning a fibre made of a protein and becomes a silk fibre. Several caterpillars form a protective layer around pupa and this covering is known as the cocoon. The silk thread (yarn) is obtained from the silk moth’s cocoon. The life cycle of silkworm is explained below in details.
The life history of silk moth can be described and represented as follows:
(1) Firstly the female silk moth lays eggs from which larvae come out.
(2) These larvae are known as caterpillars or silkworms.
(3) They start growing in size by feeding on mulberry leaves.
(4) The next stage of its life history is called pupa but before entering this stage caterpillar covers itself into silk fibre. This covering is called cocoon.
(5) Inside cocoon, the pupa develops into a moth and comes out as an adult silk moth.
Processing of silk
Extracting silk from the cocoon is known as the processing of silk. Silk is separated from cocoon by exposing it to sunlight. After that reeling of silk is done, the process of unwinding silk from a cocoon. Silk thread is then bleached. Silk fibre is then spun into silk threads.
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