Silk fibres are made of ____.

Proteins

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Carbohydrates

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Amino Acids

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Vitamins

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Solution

The correct option is A
Proteins

Caterpillar secretes fibre made of protein which hardens on exposure to air and becomes silk fibre.

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Silk fibres are made of ____.

The correct option is A Proteins Caterpillar secretes fibre made of protein which hardens on exposure to air and becomes silk fibre.

The correct option is A
Proteins

Caterpillar secretes fibre made of protein which hardens on exposure to air and becomes silk fibre.