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Porifera
Sponges are multicellular, and have specialized cells which allow them to perform basic functions, which help them live in their stationary home. They are asymmetrical, heterotrophic, and house no cell walls. They also come in various colors, sizes, and shapes and frequently form part of Coral Reefs
Tom Owens Cay, Belize
Sponges digest their food intracellularly. Through this method, digestion occurs inside of their cells. Sponges are also "filter feeders." This means that they consume any microscopic debris near them. These microcospic particles travel in the water and pass through the sponge using it's archaeocytes.
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