How the aquatic organisms like fish take in oxygen brainly?
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Unlike land animals, which have lungs to take in oxygen from the air, fish have gills to breathe in the oxygen contained in water. This process of breathing begins when a fish gulps water through its mouth. ... At the same time, waste carbon dioxide in the blood passes out through the gills into the water.
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The fish has special organs for breathing called 'gills'.The fish has gills on both the sides of its head. The water passes over gills. The gills extract dissolved oxygen from its water. The water that goes out through gill slits. The extracted oxygen is absorbed by the blood and carried to all parts of the fish. The carbon dioxide produced by respiration is brought back by the bllod into the gills or expelling into the surrounding water.
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