yes
No they do not have gills.
Reptiles always breathe with lungs. Amphibians may breathe with lungs, gills or through their skin.
Yes some reptiles do have gills.
Yes, all reptiles breathe using lungs. If they are underwater they have to come to the surface to breathe. Amphibians (frogs, newts, salamanders etc) are NOT reptiles. Amphibians often breathe through their skin.
Mammals, birds, reptiles and adult amphibians breathe using lungs. Fish breathe using gills, while juvenile amphibians breathe using gills and spiracles.
Elephants breathe with lungs.Most land animals breathe with lungs.All mammals breathe with lungs.All reptiles breathe with lungs .All birds breathe with lungs.Some amphibians breathe with lungs, while some do not.Only fish and marine crustaceans breathe with gills.
No, when alligators go under water, they are holding their breath.
They do indeed. I should also point out that crocs are reptiles, not amphibians.
Fish obtain oxygen through their gills, allowing them to breathe underwater, while reptiles require air to breathe like we do. Marine reptiles, such as sea turtles, have to surface periodically for air.
Most reptiles exchange gases through their lungs. The lungs of reptiles are folded so as to make enough room for gaseous exchange.
Only underwater snakes do. Not land snakes.
When amphibians are babies, they have gills, but most adult amphibians breathe with a pair of lungs excluding salamanders.