Respiration in Organisms
Respiration in Organisms > Ask Question to Alfie
Hi
How do fishes breathe?
Fish breathe underwater using the oxygen that is dissolved in water. But to absorb oxygen from water, fish use special organs called gills.
The fish takes in water through its mouth, just like you take in air through your mouth and forcing it out through the gill passages. When the water moves through the gills, dissolved oxygen from the water passes through the thin walls of gills and blood vessels, and enters the blood. Gills in fish help them to use oxygen dissolved in water. Gills are projections of the skin. Gills are well supplied with blood vessels for the exchange of gases.
The fish takes in water through its mouth, just like you take in air through your mouth and forcing it out through the gill passages. When the water moves through the gills, dissolved oxygen from the water passes through the thin walls of gills and blood vessels, and enters the blood. Gills in fish help them to use oxygen dissolved in water. Gills are projections of the skin. Gills are well supplied with blood vessels for the exchange of gases.
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