The only possible exceptions I can think of are fish(I imagine gills and mouth are not connected but don’t really know). I am excluding bacteria and viruses and I believe they don’t really breath(correct me if I’m wrong).
The only possible exceptions I can think of are fish(I imagine gills and mouth are not connected but don’t really know). I am excluding bacteria and viruses and I believe they don’t really breath(correct me if I’m wrong).
Wait, so fish inhale water… Some process takes place separating the water and oxygen atoms and then they exhale the carbon dioxide and hydrogen out their gills? Or am I still completely wrong?
Not really inhale-exhale, since they don’t have lungs. Kinda like when you sweat and you can feel the breeze cooling you under your arms. But instead of under your arms it would be on your neck, and instead of cooling you’d be respirating. But yes as the water moves past the gills, the blood is receiving oxygen and expelling CO2.