Question

Explain how a fish having gills is not able to take oxygen out side water?​

Answer 1

If their blood flowed through the gills in the same direction as the water, the fish would not be able to get as much oxygen from it. The gills are a like a filter and they collect all the oxygen the fish need to breath. After the gills pick up the oxygen, it is sent throughout their blood and fuels their bodies.

Answer 2

A fish does not have the capability to use the oxygen outside water because the gills can only change the oxygen dissolved in water for it to use.