The caterpillar secretes fibre which hardens on exposure to air and becomes silk fibre. The fibre secrets by caterpillar are made from:
A
fats
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B
proteins
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C
cellulose
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D
sliva
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Solution
The correct option is B proteins The caterpillar secretes fibre which hardens on exposure to air and becomes silk fibre. The fibre secrets by caterpillar are made from proteins.