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What is the white, egg-like object shown at the beginning of the video?

• A silkworm pupa

• A silkworm cocoon

• A silkworm egg

• A silkworm larva

What is the primary purpose of the silkworm larva spinning silk around itself?

• To attract a mate

• To protect itself during pupation

• To store food for the winter

• To build a nest for its offspring

영상 강의를 즐기고 계신가요?

• 예

• [번역됨] 아니오

What is the name of the silk thread produced by silkworms, as mentioned in the video?

• Cotton thread

• Myeongjushil

• Nylon thread

• Sericin

Approximately how much silk can be obtained from a single silkworm cocoon?

• 100-200 meters

• 500-800 meters

• 1,200-1,500 meters

• 2,000-2,500 meters

Why are silkworms considered highly beneficial to humans?

• They help pollinate crops.

• They produce both silk and edible pupae.

• They control other insect populations.

• They are a source of natural dyes.