Thursday, 15 June 2017

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coelenerata-obelia

obelia                     


          aj hm ap ko coelenerata kai animal obelia kai colony kai baare mai btayege   


             the term zooid is used for an individual form a coelenterate  colony hydroid colony of obelia is dimorphic exhibiting two type of zoids 1 polyp or hydranths or feeding 300 idand 2  gonangium 
                     these two type of zooid differ both form morpholgically as well as physiologically  


                          zooids gr zoon=animal  oid=form 

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