differentiate phylums based on special character
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Explanation:
- porifera : choanocyte cells
- cnidaria : cnidoblast cells
- ctenophora: lasso cells and bio luminescence
- platyhelminthes: flame cells and regeneration capability
- ascelhelminthes: renette cell
- annelida:nephridia; metameric segmentation,true coelom,closed circulatory system and pumping heart first appeared
- arhtropoda: successful Invaders of terrestrial environment among invertebrate due to 1)cuticle 2)appendages 3) wings
- mollusca: secretion of calcareous shell
- echinodermata: water vascular system with tube feet
- hemichordata: connecting link between non chordata and chordata. notochord like structure called buccal diverticulum is found in buccal cavity
- chordates:
presence of
- notochord
- dorsal hollow nerve cord
- paired pharyngeal gills
- post anal tai
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