WHY DO AQUATIC ANIMALS BREATHE FASTER THAN TERRESTRIAL ANIMALS ?

Dear student

Aquatic animals breathe at a faster rate than the terrestrial animals because the amount of dissolved oxygen in water is fairly low compared to the amount of oxygen in the air. To meet the oxygen need aquatic animals breathe faster to intake more oxygen.
The oxygen concentration in water is 21% less than the concentration of oxygen in the air.
Most fishes and amphibian species breathe through gills. Due to the lower percentage of oxygen in water, so these animals need to have more water inside their gills to extract enough oxygen, hence they breathe faster.

regards

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it could be maybe due to their resistence of tremendous pressure underwater...
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Dear friend
Since aquatic animals have gills where diffusion of gases occur from water directly then oxygen is transported from gills to throughout the body .whereas in terrestrial animals the gases first reach the lungs and then tissues which takes time hope this helps
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Aquatic animals take in the oxygen dissolved in water. The amount of dissolved oxygen in water is fairly low compared to the amount of oxygen in the air. Therefore, rate of breathing in aquatic organisms is much faster than in terrestrial organisms. ....
HOPE IT WILL HELP YOU.......
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The amount of oxygen in the atmosphere is much more than that of dissolved oxygen in water.Thus,the rate of breathing in aquatic animals is faster than that of terrestrial animals in order to get maximum oxygen for their survival.
Hope it helps!
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because the amount of oxygen in water is much lesser than that of in the air so to acquire more oxygen they need they have to breathe faster through their gills
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