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प्रश्न
Describe the life history of the silk moth with the help of figures of various stages.
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उत्तर
The female silk moth lays eggs. When an egg hatches, a tiny caterpillar crawls out. This is the silkworm or larva. The silkworm feeds on mulberry leaves and grows. When it is ready to enter the next stage in its life cycle, it first weaves a net to hold itself. It then secretes a fibre made of proteins, which hardens on exposure to air. This is the silk fibre. It covers itself completely with this fibre, to form a cocoon. At this stage, the larva is called a pupa. The pupa grows and changes inside the cocoon. A few weeks later, the cocoon opens and an adult moth comes out.
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संबंधित प्रश्न
A natural fibre obtained by boiling cocoons is called ______.
The cultivation and production of silk is known as ______.
______ is the strongest natural fibre.
Write about any three uses of silk.
Reeling of silk is ______.
State whether the following statement is True or False. If false, correct them.
The rearing of silkworms for obtaining silk is called silviculture.
______ are boiled to get the silk.
The production of silk is called ______.
The silk moth feed on ______.
The larva of a silkworm is called ______.
