*Hemichordata :- WerMa -Worm like & Marine . Body is compossed - TopicsExpress



          

*Hemichordata :- WerMa -Worm like & Marine . Body is compossed of anterior Proboscis , a collar & long trunk. eg.Ballon Sa glass- Balanoglossus & Saccoglossus. *Chordata:- -Notochrod,Dorsal hollow never cord & Pharyngeal gill slits present. -Devided into 3 subphylum :- 1.Urochordata(Tunicata) : Notochord is present in only laraval tail. 2.Cephalochordata(Lancilet): Notochord is extend from haid(cephalus) to tail & persist throughout life. 3.Vertebrata. ex. AmBer DAs Sala AmBer-Amphioxus, Branchiostoma of Cephalochordata. DAs Sala-Doliolum, Ascidia, Salpa of urochordata.
Posted on: Fri, 01 Nov 2013 06:53:53 +0000

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