The diagrams below show the life cycle of the silkworm and the stages in the production of silk cloth. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The graphic illustrates the life

process

of the silkworm and the phases in the manufacture of

silk

material.

Overall

, the lifecycle is a natural

process

and contains four cyclical phases, beginning with the laying of eggs and ending with the birth of a new moth from a cocoon. The production of

silk

is,

in contrast

to the previous stage, a man-made linear

process

comprising

of

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6 main stages.

To begin

with, eggs are produced by the moth and it takes 10 days for the eggs to hatch into silkworm larvae that feed on mulberry leaves.

This

stage takes between 4 and 6 weeks before the worms construct a cocoon from

silk

thread, taking approximately one week. They stay there for around a fortnight,

subsequently

emerging as moths and the

process

can begin again. The first stage in the manufacture of

silk

is the selection of cocoons and these are

then

boiled. Once boiled, the

silk

thread is unwound to a length of between 300 and 900 meters.

Finally

, the

silk

can be twisted and weaved into cloth before being dyed.