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B
Chelonia
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C
Birds and Crocodile
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D
Ophidia
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Solution
The correct option is D Birds and Crocodile
Crocodilia has a four-chambered heart with two ventricles and two auricles, an unusual trait among extant reptiles and both a left and right aorta which are connected by a hole called foramen of Panizza.
*the birds have evolved a four-chambered heart.two of these chambers are basically receiving vessels called atria and the other two chambers called ventricles are the pumping powerhouses.