What is porifera ?

1.	What is porifera ?
Answer» \tThe organisms belonging to this group have holes.\tThe animals of this group are non- motile and are attached to some rigid support.\tThe organisms belonging to this group have pores throughout their body.\tThey have a canal system circulates the water throughout the body of these organisms to transport the food and oxygen.\tThese organisms are covered with a hard external layer or skeleton.\tExamples of animals belonging to this group are Euplectelea, Sycon, Spongilla.

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