it increases surface area for gas exchange which means that more oxygen is absorbed.
Crayfish exchange gases through gills located underneath their carapace. Water is drawn in through the crayfish's openings and passes over the gills, where oxygen is absorbed and carbon dioxide is released.
GillsThe gills perform the same function.
gills
to protect the gills
The primary function of external gills in aquatic animals is to exchanges gases. However, gas exchange is more difficult with external gills.
Newts have toxic skin, and feathery gills.
mud puppy
Its gills.
Whale shark gills are similar in structure to other fish gills. Oxygenated water is passed over the gills which have a rich, near surface blood supply and gases are exchanged between the blood and the water. The gills are feathery and have a large surface area so that there is enough gas exchange to keep the fish supplied with the oxygen it needs.
An axolotl is a salamander in the larval stage. They live in the water, so they need to have gills to breathe.
Mud Puppy
answer is mud puppy not red guppy