Life Cycle of Silk Moth


 
 
Concept Explanation
 

Life Cycle of Silk Moth

Life Cycle of Silk Moth

  •  Formation of silkworm: The female silk moth lays about 300 to 400 eggs at a time. The eggs hatch and the caterpillars or silkworms emerge. This is called the larval stage. The silkworm feeds on mulberry leaves. The female dies almost immediately after laying the egg.
  • Development of Cocoon:  when the silkworm is ready to enter the next stage of its development called ‘pupa’, it first weaves a net to hold itself. The silkworm secretes fine filaments from two glands on its head. The filaments are made of a protein that hardens to form silk fibres when exposed to air. Soon the silkworm covers itself by silk fibres and turns into pupa. This covering is called ‘cocoon.’ The silk worm continues to develop in the form of pupa inside the cocoon to form the silk moth.
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    Sample Questions
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    Question : 1

    In which stage of the life cycle of silkmoth forms silk fibres?

    Right Option : B
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    Question : 2

    The female silk moth lays about __________ eggs at a time.

    Right Option : A
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    Question : 3

    __________________is soft, lustrous and elastic and can be dyed in beautiful colors.

    Right Option : C
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