What is the life history of the Silkmoth?
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What is the life history of the Silkmoth?
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.
What are the various stages in the life cycle of Silkmoth?
The order of their life cycle is Silkmoth → egg → silkworm → pupa.
What is called Silkmoth?
silkworm moth, (Bombyx mori), lepidopteran whose caterpillar has been used in silk production (sericulture) for thousands of years. Although native to China, the silkworm has been introduced throughout the world and has undergone complete domestication, with the species no longer being found in the wild.
What is Silkmoth in science class 7?
Answer: An insect that lays eggs to reproduce silkworms which spins silk.
What are the four stages of life history of silkworm?
Silkworm has four stages in its life cycle viz., egg, silkworm, pupa and moth.
What is life cycle of silk worm?
The life cycle of mulberry silkworm completes in 45-55 days, consists of stages egg, larva, pupa and moth. Egg stage is lasting for 9-10 days, larval stage which is 24-28 days, pupal stage 8-10 days and moth stages 3-4 days.
Which is the correct sequence in the life cycle of a Silkmoth?
Inside the cocoon silkworm (caterpillar) changes into the pupa and then to moth and fully developed moth comes out of the cocoon. So the order is silk moth->egg->silkworm->pupa. Thus, the correct answer is option C.
What stage of the life cycle is Silkmoth for silk fibres?
The pupal stage is found only in holometabolous insects, those that undergo a complete metamorphosis, going through four life stages: embryo, larva, pupa and imago. During the pupal stage, only in the case of Bombyx mori, they produce silk.
What is larva of Silkmoth called?
The silkworm is the larva or caterpillar of a silk moth. It is an economically important insect, being a primary producer of silk. A silkworm’s preferred food are white mulberry leaves, though they may eat other mulberry species and even the osage orange.
What is the life cycle of silk worm?
How many larval stages are there in Silkmoth?
However, during the growth phase they can eat tougher mulberry leaves as well. The larval stage lasts for about 27 days and the silkworm goes through five growth stages called instars, during this time.
In which stage of life cycle does the Silkmoth produce silk thread?
pupal stage
The pupal stage is found only in holometabolous insects, those that undergo a complete metamorphosis, going through four life stages: embryo, larva, pupa and imago. During the pupal stage, only in the case of Bombyx mori, they produce silk.
Which of the following is not a stage in the life cycle of Silkmoth?
Sericulture. Sericulture is not a stage of life cycle of silkworm. Option D is correct.
What are the four stages in the life history of silkworm answer?
Answer. Answer: The life history of mulberry silk worm consists of four stages- the adult, the egg, the larva (catripillar) and the pupa stage.
How many times does a silkworm Moult?
Expect to see your silkworms moult three to four times. Your silkworms will be ready to spin their cocoons when they are about 7.5cm long. Before they spin the cocoons their skins may become tight or shrink, they may go to the side of the tub, they will stop eating and their skin will darken.
Which of the following stage of Silkmoth is suitable for extraction silk?
The correct answer is Pupa. Female silk moth lays eggs and then the larvae are hatched out of eggs known as caterpillars. They are grown in size and they enter the second stage called pupa where they secrete fibre made up of preteen which when comes in contact with air and it hardens to become silk fibre.
