Hyalonema is a .................... sponge.

Calcareous

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Demospongia

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Hexactinellida

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Keratosa

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Solution

The correct option is C Hexactinellida
Hyalonema is also called as the glass rope sponge. It belongs to the class Hexactinellida. It is a marine form found 10-15 meters deep in the sea. It has a round or oval body with a spirally twisted root tuft. Its skeleton is made up of silicon amphidisc spicules. It is found in the new coast of England.
Hence the correct option is C.

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