Describe the process of respiration in fish.

(N/A) $1$. Fish possess specialized respiratory organs called $gills$, located on both sides of the head, which are protected by gill covers.
$2$. Fish live in an aquatic environment where oxygen is dissolved in water.
$3$. The process of breathing involves the fish taking water in through its mouth and forcing it over the $gills$.
$4$. As water passes over the $gills$, the $gills$ extract the dissolved oxygen from the water.
$5$. This extracted oxygen is absorbed by the blood and transported to all parts of the fish's body.
$6$. Simultaneously, carbon dioxide produced during cellular respiration is transported by the blood back to the $gills$ to be expelled into the surrounding water.