yes
Yes
No. As they are a fish species, they have gills. See the related link for more information.
they have gills
Fish Use Gills Instead of lungs. Gills Help fish to Breath. Fish Use Gills Instead of lungs. Gills Help fish to Breath.
No. Fish use gills instead of lungs. Marine mammals have lungs but don't breathe through a mouth or nose, they use a blow hole.
Yes, some fish are known to blow bubbles as a way of communicating, playing, or as part of their breeding behavior. For example, Betta fish are known to make bubble nests in the wild by blowing bubbles on the water's surface to construct a nest for their eggs.
all fish have gills
yes all fish have gills.
gills.
All fish have gills. Their gills are like lungs. And if they didn't have gills they would die.
gills
gills