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) | |