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porifera |
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Answer» Porifera is also called sponges. They have water transport Canal system. Water enters through minute pores( ostia) in the body wall into a central cavity,spongocoel ,from where it goes out through osculum . Digestion is intracellular.Exampke ÷ sycon,spongilla ( fress water sponge),euspongia( bath sponge) It\'s a phylum of marine and asymmetrical animals |
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