Explain life cycle of silk worm with a diagram.
Answers
Answer:
Silk is a natural fibre which comes from the cocoons of silkworms, which are the larvae of the mulberry silk moth Bombyx mori. - A female moth lays 300-500 tiny eggs and after around 10 days, the larvae (silkworms) hatch.
Answer:
STAGE 1: Egg
An egg is the first stage of the life of the silk worm . The egg is lead by a female moth which is mostly the size of small dots. A female moth lay more then 350 eggs at a time. In the spring time the egg hatch due to the warmth in the air . This procedure happens in every one year.
STAGE 2: Silkworm
A hair silk worm raises after the egg crack. In this stage of silk worm the growth happens. They feed on mulberry leaves and consume a large amount of these leaves for around 30 days before going to the next stage.
STAGE 3: Cocoon
In this stage, silkworm spin a protective cocoon around itself. It is the size of a small cotton ball and is made of a small thread of silk .
STAGE 4: Pupa
Pupa stage is a motionless stage. In this stage people kill the pupa by lunging the cocoon into boiling water and unwind the silk thread.
STAGE 5: Moth
In this stage , the pupa changes into an adult moth. The female moth lays egg after mating and thus the life cycle of silk worm begins again.