increased surface area which allows for more efficient digestion
outside
Frogs have external (outside) fertilization.
Yes, frogs have a stomach.
Because the poison of some frogs, (poison dart frog's) poison is on the outside of the body, not the inside.
Frogs are in the order Anura, which has many different families of animals commonly called frogs nested inside of it.
Clear on the outside, and a brownish, grayish color on the inside.
It is made up of mucous. :)
The color of frog's lungs are a purplish brown.
Intestines are present underneath frogs stomach i.e on the posterior side of the body.
yes
Frogs don't need have their offspring develop inside them. So if you were to dissect a frog you would not find the uterus because frogs release sperm and eggs to develop outside the body. Technically, the uterus is the outer shell of the egg...
Not as a rule, they are too small, fast and live in completely different areas