How Do Gills Work How Does It Make Breathing In Water Possible
Just like humans breathe with the lungs, gills are the respiratory organs of many aquatic creatures.To stay alive, underwater organisms also need to breathe in oxygen and excrete carbon dioxide. This is where the functionality of gills step in.Oxygen diffuses 10,000 times more easily in the air than in water. Air-sac structures like lungs are not enough for absorbing the oxygen from water. Fish need something more powerful to draw the diffused oxygen from water to sustain....