A) Pteropus and Omithorhynchus-Viviparity
B) Garden lizard and crocodile-three chambered heart
C) Ascaris and Ancyiostoma-Metameric segmentation
D) Sea horse and flying fish- Cold blooded (poikilothermal)
Correct Answer: D
Solution :
Metameric segmentation is found in Annelida not Nematoda (Ascaris). Crocodile has four-chambered heart. Sea horse and flying fish belong to class-Pisces. These are cold-blooded animals. Ornithorhynchns is oviparous mammal.
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