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Historical illustration, Hexactinellid Sponge, Glass Sponge, Farrea, Polyopogon amadu, Stock Photo, Picture And Rights Managed Image. Pic. IBR-1071115 | agefotostock
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Calcareous sponge (Sycon) cross section showing choanocyte chambers, inhalant canals, mesophyle and spongocoel. Optical microscope X40 Stock Photo - Alamy
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