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2015-02-04T19:35:59+05:30

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the word protochordates means primitive chordata 

they posses notochord and some stages of their life . it stiff rod like structure that runs along the back of the organs and seperates and nervous tissue from gut .

marine animals
triploblastic 
bilateral symmetry
'U' Shaped or tubular



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2015-02-04T19:47:24+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Prototochordata includes anyone of the nonvertebrate chordates, as tunicates, cephalochordates and hemichordates.

Protochordates do not have backbone.

They posses hollow dorsal nervecord ,gill slits .


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