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Body having meshwork of cell, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylumA. CoelenterataB. PoriferaC. MolluscaD. Protozoa |
Answer» Correct Answer - B In Porifera (sponges), bodies are asymetrical. Body lacks tissue or organs, but from a meshwork of cells surrounding channels that open to the outside through pores, and that expand into internal cavities lined with food filtering flagellated cells (choanocytes). |
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