MCQOPTIONS
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| 1. |
Syrinx is the vocal organ located at the base of trachea. In which of the following organisms syrinx is present? |
| A. | Reptiles |
| B. | Amphibians |
| C. | Birds |
| D. | Both (a) and (c) |
| Answer» D. Both (a) and (c) | |