What remains after a sponge dries?

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Question

(A) Sponges belonging to the phylum $Porifera$ possess an internal skeleton made of spicules or spongin fibers. When a sponge is dried,the soft living

Vedclass · Accepted Answer

Spongin fibers

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(A) Sponges belonging to the phylum $Porifera$ possess an internal skeleton made of spicules or spongin fibers. When a sponge is dried,the soft living tissues decompose or are removed,leaving behind the tough,fibrous network of the skeleton. This skeleton is primarily composed of $Spongin$ fibers,which are proteinaceous in nature. Therefore,the correct answer is $Spongin$ fibers.

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