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The Phylum Porifera consists of the sponges. To make it into the porifera phylum an animal must have no true tissue. Some contain spicules, a skeletal element, and all contain choanocysts, a type of cell, which move water through the porous bodies of poriferas. Porifera also have totipotent cells, which have the cabalitity of changing into whatever type of cell is needed by the organism.

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16y ago

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