MCQOPTIONS
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| 1. |
Sharks and dogfishes differ from skates and rays by? |
| A. | Distinct demarcation between body and tail |
| B. | Head and trunk are widened considerably |
| C. | Gill slits are ventrally placed |
| D. | Their pectoral fins distinctly marked off from cyclindrical bodies |
| Answer» E. | |