Science
How long, in kilometers, is the average single thread unwound from a silkworm cocoon?
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What section of an insect's body are the legs and wings attached to?
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What is it called when the Earth, Sun and Moon lie in a straight-line configuration?
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What is the proper name for a "sundog", or an atmospheric optical phenomenon?
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What was so unusual about the Mercury space flights?
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What organelle packages and helps in secretion of substances within the cell?
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