Question

3. Why is a caterpillar killed as soon as the pupa stage is complete?
4. Which is the most common variety of silk?
FIBRE TO FABRICA-27​

Answer 1

Answer:

3.It is killed because if it grows into a moth, it will break the fibre

4.mulberry silk

Answer 2

Answer:

3. fibres and the developing silkworm (as pupa) gets killed. This is because if the silkworm (as pupa) is allowed to mature into a silk moth, then the fully formed silk moth secretes a liquid to dissolve a part of silk of the cocoon to break it so as to come out of it and fly away.

4.Mulberry silk

Mulberry silk is the most common among the many kinds of silk. It makes up 90% of the silk supply in the world. This popular kind is produced by the silkworms which are fed from the mulberry bush (thus the name). Since it is a common kind of silk, acquiring it is easy.

Explanation: