How does the protochordata gets nutrition ,how they respire,how are their digestive system,how they reproduce,are the sexes seprate and unique about htem
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Protochordata: These are the organisms belonging to the phylum Chordata, and are primitive chordates. Protochordates possess a notochord during their early stage of development. The notochord is a long rod-like support that runs all along the back of the animal separating the nervous tissue from the gut. e.g.Balanoglossus, Herdmania.
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