fish respiration

Fish respiration involves extracting oxygen from water to fuel their body functions. They do this by drawing water in through their mouths and passing it over specialized gill structures. The gills contain thin filaments rich in blood vessels, allowing oxygen to diffuse from the water into the bloodstream and carbon dioxide to leave the body. This process is efficient because water contains much less oxygen than air, so fish have adapted gills to maximize oxygen absorption. Overall, fish respiration is a vital process that sustains their energy needs and overall health in aquatic environments.