A) Balaenoptera
B) Delphinus
C) Pteropus
D) Ornithorhynchus
Correct Answer: D
Solution :
Ornithorynchus (duckbill platypus) is oviparous mammal wilth a cloaca. Platypus and Echidna belong to class?Prototheria. Balaenoptera is zoological name of blue whales. Delphinus is to dolphin and Pteropus is flying fox (bat). All of three are viviparous.You need to login to perform this action.
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