Silk is produced by____________?
Correct answer: B. Larva of silkworm
- A. Egg of silkworm
- B. Larva of silkworm
- C. Pupa of silkworm
- D. Insect itself
Explanation
The larva of the silkworm produces silk from glands near its mouth and spins it into a cocoon. The pupa develops inside the cocoon but does not produce the silk.
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Inventions and Discoveries covers the people, dates, principles and practical uses behind developments such as the wheel, printing press, telephone, electricity, radio, computer, internet, vaccines and space technology. It distinguishes an invention, which creates a device or process, from a discovery, which identifies something already present in nature.
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