The outside
No. They breath using their lungs or with their lungs, but not "through" their lungs. They do however breath "through" their blowholes (to get the air in and out of their lungs).
The tonsils are the first lymphatic tissue that inspired air encounters as it passes through the mouth and nose. The tonsils help to trap and remove pathogens and foreign particles in the air as it enters the respiratory system.
You breath through a respiratory system for short you breath through your lungs
Through your mouth/nose when you breath.
Of course they can all fish have gills which allow them to breath in water.
because fish have gills and breath in water and we breath air through our lungs
Reptiles breathe air - through their lungs.
Insects, generally, breath through spiracles, usually on their abdomen.
No. It is more instinctive for to breath through our noses because where far more air can get from the harmful substances in the air that us. Plus it takes less effort than breathing through your mouth
horse
Lungfish can breathe through air.
No because it is not a fish it is a mammal.