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Question : In which vertebrate group (s), heart does not pump oxygenated bloodto variousparts of body ?

Answer»

Pisces
Pisces and amphibinas
Amphibians
Amphibians and reptiles

Solution :Fishes have two chambered heart. It only PUMPS de-OXYGENATED BLOOD to gills for OXYGENATION . Oxygenated blood goes DIRECTLY to body organs from gills .


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