Question

Long answer type questions.
(d) explanation the life cycle of a silkworm . support your answer with a diagram. ? ​

Answer 1

Answer:

Explanation:

first the silkworm lays eggs.these eggs hatch and from it emerges moth.These moths eat mulberry leaves and almost shed their skin 4 times.They continuously eat these leaves till they triple their weight.Then the silk moth starts weaving a cocoon which this process takes weeks after this then it goes inside and forms a pupa.After months the silk moth emerges as a butterfly.

THIS PROCESS IS CALLED METAMORPHOSIS

Answer 2

Explanation:

The life cycle of silkworm consists of four stages:-

1) The first stage in its life cycle is egg.

The female moth lays an egg during summer and remains in the dormant state until the spring.

This allows the egg to hatch, the eggshell provides a protective covering for the embryonic development.

2)The second stage is a larval stage.

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 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.

hope it will help u........

4) Cocoon is the fourth stage

in which the larva spins a silk thread to protect itself from its predators.

5) The adult stage is called the imago.

It is the reproductive stage where females lay eggs.

Moths can not fly and lack functional mouthparts thus, it can not take in food.

hope it will help u ✌️✌️