Amphibians are tricky. Some - like frogs and toads - start out using gills when they're tadpoles and switch over to lungs as they mature. There's a salamander that has the option to choose depending on water level whether to keep the gills or to develop lungs as it matures.
Some are so good at absorbing oxygen through their skin that they can stay submerged indefinitely even without gills.
When an amphibian is a larva, it will have gills. As it matures into the adult stage, it will develop lungs.
A amphibian has neither lungs or gills
Amphibian lungs do not have to be as efficient as gills because there is much more oxygen in air than in water.
Most amphibians grow out of their gills before adulthood.
Frogs and toads have gills as tadpoles, and lungs as adults.
They have four: Gills, lungs, tongue, and skin.
gills, lungs, and permeable skin
lung, skin and gills. by dinesh singh bhadouria
They grow lungs, and lose their gills.
Amphibians, such as frogs and salamanders, begin life with gills for underwater breathing and later develop lungs to breathe on land as they mature. This transition from gills to lungs is part of their metamorphosis process.
In the early stages of development, amphibians live in the water they breathe with gills as an adult an amphibian lives on land and uses lungs to breathe.
They have a larval and adult life, have moist skin, larvae have gills while adults have lungs, and they perform amplexus to mate.