Rate of breathing in aquatic organisms is much faster why


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Why is the rate of breathing in aquatic animals much faster than in terrestrial organisms.??

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The amount of dissolved oxygen is fairly low compared to the amount of oxygen in the air, the rate of breathing in aquatic organisms is much faster than that seen in terrestrial organisms. Fishes take in water through their mouths and force it past the gills where the dissolved oxygen is taken up by blood.

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