Explain the Life Cycle of the silk moth?
Answers
Answer:
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 the pupa stage, a weave is netted around by the silkworm to hold itself.
Explanation:
Ans: Sericulture, or silk farming, is the rearing of silkworms for the production of raw silk.
Life cycle of a silk moth:
1. Egg →2.First stage of larvae→3.Second stage of larvae→4.final stage of larvae→ 5.Pupa →6.Adult
The female silk moth lays eggs, from which hatch larvae which are called caterpillars or silkworms.
They grow in size and when the caterpillar is ready to enter the next stage of its life history called pupa, it first weaves a net to hold itself. Then it swings its head from the side to side and secrets fibre made of a protein which hardens on exposure to air and becomes silk fibre. Soon the caterpillar completely covers itself by silk fibres and turns into pupa. This covering is known as cocoon. The further development of the pupa into moth continues inside the cocoon.
Answer:
Life Cycle of “Silk Worm”:
Explanation:
The life cycle of silkworm consists of five stages:-
(Silkworm →) Egg → larva → pupa → cocoon → silkworm
1) The first stage in its life cycle is egg.
The female moth lays more than 200 eggs during summer and it leave those eggs until the spring.
This allows the egg to hatch, the eggshell provides a protective covering for the embryonic development.
2)The second stage is larva.
It is the vegetative stage and it is commonly called a silkworm and it is host specific to the mulberry.
The silkworm feed on tender mulberry leaves.
The larval stage lasts for about 27 days which goes through 5 growth stages called instars (the period between moulting).
3) The third stage is pupa.
At this stage, it spins a protective cocoon around itself.
The cocoon serves as protection for the pupa which is in shades of white, cream and yellow.
The final moult takes place inside the cocoon and the larva develops into the brown and chitinous structure called the pupa.
The pupa takes about 2-3 weeks to metamorphose into an adult moth.
4) The fourth stage is cocoon.
In this stage the larva spins a silk thread to protect itself from its predators.
5) The fifth stage is also known as adult stage.
In this adult stage it is called the imago which is complete silkworm.
It is the reproductive stage where females lay eggs.
Moths can not fly and lack functional mouthparts thus, it can not take in food.
After this stage again the life cycle of silkworm starts from egg.
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