Disclaimer: I’m assuming this question can be tagged multiple flairs, but biology might be the most fitting, forgive me if im wrong.
I had a random shower thought today, I remember learning about fish and how they breathe, but I dont remember the details. Do they inhale water (H2O) and then take the Oxygen, as a result exhaling 2 Hydrogen? Do fish always exhale air bubbles? I used to own some and I dont remember them doing that unless they went to the surface for a short period of time. I also assume they breathe and drink like we do, or do they only ‘drink’ water when they consume their food since its also saturated with water?
In: Biology
Fish breathing works the same as our breathing, with one difference.
We absorb oxygen in the air through our lungs. We expell CO2 back into the air.
They absorb oxygen dissolved in the water through gills. They expell CO2 into the water.
That’s it. No bubbles of undissolved gas.
Latest Answers