PHYLUM HEMICHORDATA www.sblifescience.in.

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Presentation transcript:

PHYLUM HEMICHORDATA www.sblifescience.in

HEMICHORDATA Worm like marine animals Organ system level of organisation Bilaterally symmetrical Triploblastic Coelomates www.sblifescience.in

HEMICHORDATA Body cylindrical Proboscis Collar Trunk www.sblifescience.in

HEMICHORDATA Circulation open Respiration- gills Excretory organ – proboscis gland www.sblifescience.in

HEMICHORDATA Sexes are separate Fertilization is external Development is indirect www.sblifescience.in

EXAMPLES OF HEMICHORDATA Belanoglossus Saccoglossus www.sblifescience.in