Question

How do aquatic animals take oxygen for respiration?

Answer 1

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Here is your answer

They take the water in and absorb oxygen absorbed in water.

Answer 2

Fish. In most fish respiration takes place through gills. Lungfish, however, possess one or two lungs. ... Fish use the process known as countercurrent flow, in which water and blood flow in opposite directions across the gills, maximizing the diffusion of oxygen.