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Question

Which of the following is called as boring sponge?

A
Cliona
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B
Chalina
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C
Euplectella
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D
Hyalonema
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Solution

The correct option is A Cliona
Cliona is commonly called as boring sponge as its larva bores or damages the skeleton of corals and shells of molluscs. It is harmful to oyster industry as it kills oysters. Hyalonema is glass rope sponge. Chalina is dead man's finger and Euplectella is venus flower basket sponge.
So, the correct answer is option A.

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