Question

how do fish respire through gills

Answer 1

A fish breathes by taking water into its mouth and forcing it out through the gill passages. As water passes over the thin walls of the gills, dissolved oxygen moves into the blood and travels to the fish's cells.

Answer 2

A fish breathes by taking water into its mouth and forcing it out through the Gill passages. As water passes over the thin walls of the gills, dissolved oxygen moves into the blood and travels to the fish's cells.