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Which is true for Phylum Porifera ?

Option: 1

Inner layer is Pinacoderm


Option: 2

Outer layer is Pinacoderm


Option: 3

Nematocysts are specialised cells


Option: 4

Water vascular system is the important system in this phylum


Answers (1)

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The animals of phylum Porifera or sponges are covered with pinacoderm in the outermost layer of cells.

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Gaurav

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