Gills are found in a number of animals. Most notably in all types of fresh and salt water fish but also mollusks like snails and slugs. Crustaceans like crab and lobster have them to as do a number of insects and amphibians such as frogs, lizards and worms.
Gills would be respiration
Branchial respiration is a type of respiration that occurs in aquatic animals through their gills. It involves the exchange of gases, such as oxygen and carbon dioxide, between the animal and the surrounding water. Gills are specialized structures that facilitate this gas exchange process in aquatic organisms.
By gills .
for poo.
It is how animals respire, or breathe. We humans respire with lungs. Not all animals have lungs. For example, fish have gills, which they use to respire. Frogs breathe through their skin. All mammals (animals with hair) have lungs though, so they breathe like we do.
Lungs and Gills are both used for external respiration
Fish are animals that have gills.
The Gills
salmon
it uses its gills
Between the lungs/gills and the environment
Like all fish- through their gills.