Fish use gills to breathe underwater.
A fish! Fish are the only animals with gills and most live in water.
gills
Isopods use gills to breathe.
Yes. They do breathe every time they open their because gills are what they use to breathe
they use gills
they use gills to breathe which are usually near their feet
Yes, they do.
lungs or gills
They use lungs and gills.
They use their gills to breathe under water.
Octopuses have gills, not lungs. They use their gills to extract oxygen from water, allowing them to breathe underwater.
they breathe with gills