Their eyes can go back inside their heads. this is because of the muscle behind their eyelids. A frogs eyes are also located very high on their head so there eyes are almost never in the water.
Frogs are not adapted to live in salt water.
Frogs do not do well in a desert unless there is a permanent water supply. They have very thin skin and can quickly dehydrate in the dry desert. They are adapted to moist or wet environments.
without the water, the frog's skin dries up and kills the frog.
Water outside evaporate faster.
They can hear everything, even a predator coming to get them and even other frogs.
Yes. Frogs and toads are both amphibians, along with salamanders, newts and axolotls.
All frogs need water or some kind of humidity. Some frogs are adapted to last in dry conditions, but they are lethargic during these periods, wich means that they bury themselves and do not eat or move. The cannot survive these conditions for a long period without water.
Well you can' t see that from the outside. Scientists used to think (many decades ago) frogs with a warty skin lived on land, and frogs with smooth skin lived in the water. Nowadays it is known this is not true; the very warty firebelly toads are now considered frogs and are strictly adapted to water. Some smooth-skinned species, like the Common Spadefoot or Garlic toad is considered to be a frog wich lives terrestrial.
Inside!!
the eustachian tube
No, they lay soft eggs inside the water.
Water is evaporated faster outside a refrigerator.