Which character of coelentrate is different from other animals?
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*Characteristic Features of Phylum * Coelenterata -1.They are multicellular organisms, exhibiting tissue grade of the organisation...........................2.They are diploblastic, with two layers of cells, an outer layer called the ectoderm and the inner layer called the endoderm. ...............................3.There is a non-cellular layer that is the mesoglea in between the ectoderm and the endoderm..........................4.They show radial symmetry..............5.They have a single opening in the body through which food is taken in and also waste is expelled out................6.The opening in the body is surrounded by tentacles...........7.They can live in marine or freshwater habitats................8.They can be solitary or live in colonies. ....................9.These organisms show two morphological forms – Polyps and Medusa.Polyps contain exoskeleton and endoskeleton.The skeletons are composed of calcium carbonate.......10.Most if the coelenterates are carnivorous in nature with a few exceptions such as the s corals......................11. They get their food from other animals that live symbiotically within them......12.Digestion is both intracellular and extracellular.
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*Characteristic Features of Phylum * Coelenterata -1.They are multicellular organisms, exhibiting tissue grade of the organisation...........................2.They are diploblastic, with two layers of cells, an outer layer called the ectoderm and the inner layer called the endoderm. ...............................3.There is a non-cellular layer that is the mesoglea in between the ectoderm and the endoderm..........................4.They show radial symmetry..............5.They have a single opening in the body through which food is taken in and also waste is expelled out................6.The opening in the body is surrounded by tentacles...........7.They can live in marine or freshwater habitats................8.They can be solitary or live in colonies. ....................9.These organisms show two morphological forms – Polyps and Medusa.Polyps contain exoskeleton and endoskeleton.The skeletons are composed of calcium carbonate.......10.Most if the coelenterates are carnivorous in nature with a few exceptions such as the s corals......................11. They get their food from other animals that live symbiotically within them......12.Digestion is both intracellular and extracellular.
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The coelenterates or cnidaria are distinguished from sponges in being “tissue animals” (Metazoa) that have distinct digestive cavity. The coelenterates differ from ctenophores in being primarily radial in symmetry, in possessing nematocysts, in having a polyp stage, and in reproducing both asexually and sexually.
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