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    				| 1. | Pylangium in frog is found inA. AtriumB. VentricleC. Sinus venosusD. Conus arteriosus | 
| Answer» Correct Answer - D Truncus arteriosus of frog is divided into a long basal thick walled conus arteriosus or pylangium and a short distal thin walled bulbous aorta or synangium. | |