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Porifera are important for their roles in ecology, medicine, and commercial products, but they are also important for helping scientists come up with theories about who or what the last common ancestor of all animals might have been.
The amount of bacteria and particles that can be removed from water by sponges is up to 95%, and they can also remove 90% of the dissolved organic carbon. This allows other creatures to feed on the suspended particles and dissolved materials. The diet may contain up to 97% dissolved materials. Sponges are multicellular, heterotrophic parazoan organisms that have a distinctive feeding mechanism compared to other animals. They are the most basic animal kinds that exist, with a cell-based organization in which various cells perform various functions but do not form tissues. The phylum of sponges (Porifera) is primarily marine and includes organisms that live from the intertidal to the abyssal (deepest ocean) zone. Around 8500 identified species of sponge exist in the globe, and they play a significant part in many reef coral groups.
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