what are the features of protocordata
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1.phylum chordata of animal Kingdom is divided into 2sub-groups protocordata/acraniata (without brain box or cranium)and euchordata/crantiata (cranium is present).
2. Again protocordata is divided into sub- phylum urochordata/tunicata (notochord is present only in larval tail,eg.salpa, doliolum) and cephalochordata (notochord extends from head to tail region,eg.branchiostoma
2. Again protocordata is divided into sub- phylum urochordata/tunicata (notochord is present only in larval tail,eg.salpa, doliolum) and cephalochordata (notochord extends from head to tail region,eg.branchiostoma
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Phylum chordata of animal kingdom is divided into 2 sub-groups protochordata/acraniata(without brain box or cranium) and euchordata/craniata( cranium is present).
Again protochordata is divided into two sub-phylum urochordata/tunicata (notochord is present only in larval tail, eg. Salpa,doliolum) and cephalochordata (notochord extends from head to tail region, eg. Branchiostoma)General characteristics of protochordata -Elastic, solid, ensheathed rod-like structure of vacuolated turgid cells callled notochord is present may be through out the life or only during early embryonic development mentioned above.
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