Labels:paper | sandbar shark | shortfin mako | water OCR: Sharks Skates Rays Phylum: Chordata Subphylum Vertebrata Class: Chondrichthves This class of vertebrates is easily distinguished from the bony fishes because of their distinctive body pro files Other differences are that their skeletons are made of cartilage rather than bone they lack swim bladder and they have internal fertilization in which modified process on the pelvic fins serves as the copu latory apparatus vertehrates
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