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What is the affinities of protochordates? |
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Answer» Answer: Protochordates are commonly CALLED LOWER chordates. They lack a HEAD and a cranium, so they are also known as Acraniata. Protochordates consists of three sub-phyla based on the property of NOTOCHORD. They are Hemichordata, Urochordata and CEPHALOCHORDATA. |
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