Phylum Porifera Notes: Definitions & Explanations PDF | Download eBooks
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Phylum Porifera Definition:
Animals included in phylum porifera are parazoans because they do not show the formation of true tissues (except in class Hexactinellida).
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Phylum Porifera Notes:
Phylum porifera consists of jelly shape mesohyl interceding among two thin layers of cells, are multicellular organisms, having bodies covers with pores and channel, helping in water circulation through them. Sponges are the representative of poriferans, consisting of cylindrical body and having radial symmetry.
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