How do fish gills convert water to oxygen, if it does already?
In: Biology
All liquids and especially water contain gases from the air. Think of water as sugar and air as what is between the grains of sugar. That’s how the fizz in pop occurs. Usually the fizz is just one component of air, CO2 – in words carbondioxide gas. All the gases that make up the air we breathe will dissolve in water. The gills just extract the oxygen from the water similarly to the way our lungs extract oxygen from the air when we breathe.
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