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For the eighth observation (i = 8), identify the animal phylum, xi, and yi. a)phylum cephalochordata; xi= 33; yi= 68 b)phylum urochordata; xi= 77; yi= 25 c)phylum porifera; xi= 5.8; yi= 25 d)phylum urochordata; xi= 25; yi= 77

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(b) Phylum Urochordata: xi = 77; yi = 25 Data show the number of miRNAs (mitochondrial RNA) or “xi,”

Explanation: