yes
no
they breathe with gills
A amphibian has neither lungs or gills
yes
Snakes are "Reptiles" not to be confused with "Amphibians"
hippos are not amphibians they are mammals because they do not have gills and they do not start of as larva
They breathe with gills and lungs
Amphibians
amphibians use gills AND lungs, fish/marine life use gills alone
Most amphibians grow out of their gills before adulthood.
Gills, the larval forms of amphibians still have gills wich drop off eventually at the end of metamorphosis.
Yes, especially in the larval stage. Most species lose their gills when they become an adult, but there are some exceptions.