Question

Describe the life cycle of a silkworm.​

Answer 1

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Describe the life cycle of a silkworm.

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Life Cycle Of silkworm

• The female silk moth lays eggs on mulberry leaves.when the eggs hatch or crack ,tiny caterpillars also called larvae or silk-worms
• The silk worms feed on mulberry leaves for about 3-4 weeks and grow in size
• Now, the silkworm weaves a net to hold itself.
• It's swings its head from one head to the other to from the figure of eight.
• while doing so,the caterpillar secretes a fibre made of protein.
• It hardens on exposure to air and the silk fibre is formed
• The caterpillar then covers itself by silk fibres.This covering is called cocoon
• At this stage silkworm is called pupa.
• The pupa grows into moth inside the cocoon.
• This,the caterpillar changes into a pupa inside the cocoon.

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Answer 2

Question :

Describe the life cycle of a silkworm?

Solution :

The life cycle of a silkworm begins when a female silk moth lays eggs. After about 20 days, the larvae or caterpillars start hatching from these eggs. Then they are known as silkworms are caterpillars. The silkworms feed on fresh mulberry leaves and grow in size. They secrete find elements from the glands on their heads. These filaments are made up of protein which hardens to form silk fibres when exposed to air. The silkworm deposits filaments in a number of concentric layers around its body, through figure-of-eight movements of the head. This results in the formation of the structure called the cocoon, in about 3-7 days inside the cocoon, the silkworm enter the second stage of its life called pupa and then developed into a moth.

Diagram :

[Note - Kindly see the diagram in the attachment]

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