If you're talking about the slimy substance on their skin, that is mucus. (spelling?)
yes they do
Yes, a frog's body is covered with skin.
they have a jellylike covering that protects them
it is covered in silky,slimy skin
yes, the have an external covering to protect from water infiltration
i different from other because it scale and slime
Frogs have a permeable skin wich contains mucusglands and poison glands.
It does not lay eggs, have legs and does not have skin as outer covering
Frog's spawn are eggs laid on mass, each egg being protected in a jelly-like covering. Of all the vast number of spawn laid, not many tadpoles will live to reach adulthood as a frog. But, enough will survive each year to continue the frog species as a whole.
The scientific name for the organism commonly called a glass frog is Hyalinobatrachium ruedai. These frogs range from about one to three inches in length. The skin along their bellies is translucent, while the skin covering the rest of their bodies is mostly green.
Frogs have a different anatomy then many other animals. The large organ that covers most of their body cavity is the liver.
No, there are many different sorts of "eggs" that are covered with gel, mucus, or some other sort of covering. Frog eggs and fish eggs such as caviar are examples of eggs that do not have shells.