Question

in which stages of silkworm, silk is produced?what are the features of silk thread?​

Answer 1

Explanation:

1. The stages of production are as follows:
2. The stages of production are as follows:The female silkmoth lays 300 to 500 eggs.
3. The stages of production are as follows:The female silkmoth lays 300 to 500 eggs.The silkmoth eggs hatch to form larvae or caterpillars, known as silkworms.
4. The stages of production are as follows:The female silkmoth lays 300 to 500 eggs.The silkmoth eggs hatch to form larvae or caterpillars, known as silkworms.The larvae feed on mulberry leaves.
5. The stages of production are as follows:The female silkmoth lays 300 to 500 eggs.The silkmoth eggs hatch to form larvae or caterpillars, known as silkworms.The larvae feed on mulberry leaves.Having grown and moulted several times, the silkworm extrudes a silk fibre and forms a net to hold itself.

Answer 2

Answer:

A pupa is the life stage of some insects undergoing transformation. 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.

Properties of silk thread:

• low density makes for light and comfortable clothing
• high resistance to deformation
• good insulation properties / warm in winter, cool in summer
• strongest natural fiber available
• shimmers and shines
• good affinity to dye
• leaving aside the rather demanding care, silk is one of the most comfortable fiber fabrics in the world