Explain about Sketch and label pupa of Bombyx mori.
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A material which is composed of thin and continuous strands is known as fiber. A fiber can be of two types: natural fiber and synthetic fiber. The fibers which are obtained from plants and animals are known as natural fibers whereas synthetic fibers are man-made fibers. Examples of natural fibers are cotton and silk whereas examples of synthetic fibers are: nylon, polyester, etc. Silk is a type of natural fiber or animal fiber. Silkworm is responsible for spinning of silk and it is reared to obtain silk
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