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Q. |
Which one of these animals is jawless - |
A. | Sphyrna |
B. | Trygon |
C. | Myxine |
D. | Shark |
Answer» C. Myxine | |
Explanation: Myxine is a species of jawless fish. It is known as Hag fish in Europe. These are generally classified with the lampreys into the superclass Agnatha (law-less vertebrates) within the subphylum Vertebrata. All other living fishes (shark, rays, chimeras and bony fishes) possess true jaws derived from gill arches and are placed in the superclass Gnathostomata. |
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