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The top documents tagged [tail feed]
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Class Chondrichthyes aka Cartilaginous fishes sharks and rays sharks and rays
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Chapter 39 Fish Section 2 Jawless and Cartilaginous Fish
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Marine Fishes Chapter 8. Vertebrates Share characteristics with protochordates (invert chordates) –Single, hollow nerve cord –Pharyngeal slits –Notochord
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Marine Fishes Read Chapter 9 Pages 154- 178. Chordates All chordates have (at least during some period of their life) –Dorsal nerve cord –Gill slits
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