They take in oxygen with their gills.
the gills of a fish take in oxygen in water while the human lung take in oxygen in the air. I think...
All fish breath through their gills, there is oxygen in water, as such, they take the oxygen through their 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.
Through its gills
spiracles
All fish breath through their gills, there is oxygen in water, as such, they take the oxygen through their gills.
No, they take in oxygen.
clams use gills to take oxegen out of H2O so their heart can carry on with the circulatory system.
Fish
It takes in water (which has oxygen in it) through the gills, takes out the oxygen, and then uses it.
Mammal take in oxygen in the air while fish take in oxygen in the water.