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xuxa
by ms azra arif d a degree college for woman phase viii n.
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  1. By Ms .AZRA ARIF D.A DEGREE COLLEGE FOR WOMAN PHASE VIII Curriculum preview

  2. Characteristics Pore bearer organism Diploblastic ,asymmetrical, aquatic organism Canal system Asexual reproduction Have three classes PHYLUM PORIFERA

  3. Have calcareous spicules Examples Ascon , sycon Class: calcaria

  4. Have SILICIOUS SPICULES EXAMPLE; EUPLACTELLA class: hexactinellida

  5. HAVE SLICIOUS SPICULES OR SPONGIN FIBRES MAY BE WITHOUT SKELETON (SPICULES NOT SIX RAYED) EXAMPLE; SPONGILLA CLASS: DEMOSPONGIA