porifera definations
sultanahmad66:
a phylum of aquatic invertebrate animals that comprises the sponges.
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a phylum of aquatic invertebrate animals that comprises the sponges
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A phylum of primitive invertebrate animals comprising the sponges and having a cellular grade of construction without true tissue or organ formation but with the body permeated by canals and chambers through which a current of water flows and passes in its course through one or more cavities lined with choanocytes
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