Silk fibres are made of ____. Options: A . &nbsp protein B . &nbsp carbohydrate C . &nbsp amino acids D . &nbsp vitamins

Silk fibres are made of ___

Question

Silk fibres are made of ____.

Options:

A . protein

B . carbohydrate

C . amino acids

D . vitamins

Answer: Option A
:
A

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

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