Question

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

Answer 1

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.

Answer 2

• The rate of breathing in aquatic animals is more than that of terrestrial organisms because the concentration of dissolved oxygen in the water in much less than of the concentration of oxygen present in air, so they have to breathe more in order to get more oxygen.

• The oxygen concentration in water is 21% less than the concentration of oxygen in air.

• Because of this reason aquatic animals breathe faster than that of terrestrial animals.