Fish inhale water through their mouths, and then close the mouth, forcing this water through the gills and out the gill operculum. The gills extract oxygen from the water, and excrete CO2.
fish swim for oxygen.
Of course all fish need oxygen even puffer fish....
Tadpoles get oxygen from water like fish do.
The fishes gills are like filters. when water goes in a fish's mouth, it goes through the gills, which filter out the oxygen.
A filter in a fish tank helps provide oxygen by circulating and aerating the water, allowing for oxygen to dissolve and be available for the fish to breathe.
Floran fish need oxygen other wise it will death . so always need oxygen
A fish AERATOR is a device used to add oxygen into a fish tank so that the fish do not suffocate as they consume the increasingly depleted oxygen supply
Mammal take in oxygen in the air while fish take in oxygen in the water.
Fish are generally more abundant in ponds with higher oxygen concentrations, as oxygen is essential for their survival and activity. Therefore, you are likely to catch more fish in the two ponds with the highest oxygen concentrations. While some fish can tolerate lower oxygen levels, the overall likelihood of catching fish is greater in the healthier, oxygen-rich environments.
Sharks are a fish. Fish have gills that extract oxygen directly from the water in which they live.
All fish need oxygen....
no, Fish like all animals breathe in Oxygen and out Carbon Dioxide.