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Why do fishes die when taken out of wate...

Why do fishes die when taken out of water?

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Gills are the organ of gaseous exchange in fishes as they have two chambered heart and heart pump the deoxygenated blood to gills. Rich in blood capillaries, these gills serve as surface for exchange of `CO_(2)` and oxygen between deoxygenated blood and surrounding. As they are taken out of water, gills are no longer able to absorb oxygen causing its death.
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