Make sketches of the two stages in the life history of the silk moth which are directly related to the production of silk.

The stages in the life history of the silk moth which are directly related to the production of silk are egg, silkworm, cocoon, and pupa. Stages of the life cycle of silkmoth:

Stage 1: Egg

1. The egg is laid by a female moth, which is of a very small size.
2. A female moth lays around 350 eggs at a time.
3. In the springtime, the eggs hatch because of the warm air.
4. This process occurs every year.

Stage 2: Silkworm

A hairy silkworm emerges from the egg when there is a split in it.

Stage 3: Cocoon

1. Silkworms spin a protective cocoon at this stage.
2. It is composed of a single silk thread and is quite tiny.

Stage 4: Pupa

1. The stationary stage is the current stage.
2. By submerging the cocoon in hot, boiling water, the pupa is killed.
3. It will also cause the silk to unwind.