Thursday, 16 February 2012

UROCHORDATA-CLASS-THALIACEA

Free -living, pelagic in warm.
Solitary or colonial
Body shape are variable.
Tunic permanent, thin and transparent,having muscle bands.
Atriopore located posteriorly..
Pharynx with 2 large or many gill-slits.
Sexes united.
Larva formed or abesent.
Adult is without notochord.
Asexual budding.
Life history with an alteration of generation.

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