advantages of circulation of blood in fishes añd amphibians
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blood circulation in fishes and amphibians help to supply oxygen to organs which is necessary for an organism to survive
fish have 2 chamberd heart and amphibians have 3 chambered heart
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Answer:Most animals are complex, multicellular organisms that require a mechanism for transporting nutrients throughout their bodies and for removing waste products. The circulatory system has evolved over time from simple diffusion through cells, in the early evolution of animals, to a complex network of blood vessels that reach all parts of the human body
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