Amphibians have scaly skin.
they adapt to the ecosystem.
Membrane Membrane
Reptiles. They are cold-blooded, have four legs, and lay amniotic eggs.
They are called Herpetologist Zoologist studying specifically the frogs are called Batracologist
A painting on animal skin. it's really sort of self explanatory.
Yes
the vertebrates are taken by the mother egg where they will hatch.
Any sort she chooses.
Nothing really, the body digests it as normal, you could get some sort of stomach problem depending on what was on the skin.
Sort of. If you break a bone really bad, the broken end(s) can poke a hole through the skin.
Sort of. In the mouth it's usually considered a mucuous membrane instead of skin, but it's pretty much the same.
Skin abrasion, skin contact with some sort of toxin, or as a side effect from a function of the body, Mostly because of Poison ivy.