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

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of the silkworm and the phases in the manufacture of

silk

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material.

Overall

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, the lifecycle is a natural

process

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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

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is,

in contrast

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to the previous stage, a man-made linear

process

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comprising

of

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6 main stages.

To begin

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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

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

silk

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

subsequently

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emerging as moths and the

process

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can begin again. The first stage in the manufacture of

silk

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is the selection of cocoons and these are

then

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boiled. Once boiled, the

silk

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

Finally

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, the

silk

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can be twisted and weaved into cloth before being dyed.