Through its gills
It takes in oxygen through air, using lungs. Fish take in oxygen through water, using gills.
The fishes gills are like filters. when water goes in a fish's mouth, it goes through the gills, which filter out the oxygen.
Insects take in oxygen through tiny openings in their bodies called spiracles. These spiracles are connected to a network of tubes called tracheae, which deliver oxygen directly to their cells.
Fish don't breath, they take in water through the gills, take out the oxygen from the water, and dispel the excess water
All fish breath through their gills, there is oxygen in water, as such, they take the oxygen through their gills.
Fish have gills which take oxygen from water that passes through.
Fish breathe using their gills. Gills are respiratory organs that extract oxygen from the water and release carbon dioxide. Water passes through the fish's mouth and flows over the gills, allowing the fish to absorb oxygen from the water.
Mammal take in oxygen in the air while fish take in oxygen in the water.
Oxygen
Oxygen
yes. fishes receive oxygen under ocean . This is because of aquatic plants.