artemnt1075 artemnt1075 09-12-2019 Biology contestada 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