HomeWhy do fish and other living things have different roles in the aquarium?What are the functions performed by fish? Why do fish breathe? How do fish breathe? What is the structure of gills?

What is the structure of gills?
      Gills are located in the gill chambers on each side of the head. Some fish have as few as two gills in each chamber and some have as many as five gills. Gill pouches, through which the water flows, separate the gills from one another. Each gill has an artery flowing through it. The artery branches off into many small blood vessels.

What is the structure of fish?