McqMate
| Q. |
Which one of these animals is jawless - |
| A. | Sphyrna |
| B. | Trygon |
| C. | Myxine |
| D. | Shark |
| Answer» C. Myxine | |
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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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