A mature frog has a pulmonary system, meaning it breathes through its nose and lungs. Tadpoles breathe through gills and a spiracle. Recent reports have emerged of a new species that has been discovered in a remote part of Indonesia. This species breathes through its skin. The species Barbourula kalimantanesis was found in Borneo early in 2008.
Frogs breathe through an opening called the nostrils or nares. These openings allow air to enter the respiratory system, enabling the frog to take in oxygen. In addition to breathing through their nostrils, frogs can also absorb oxygen through their skin, which plays a crucial role in their respiratory process.
Well, a frog breathes either through its nostrils, mouth or its skin (in the water) if that is what you mean. Through the skin, it takes in oxygen alone.
the frog can breathe through their mouth and skin.
An artery which goes to the lungs, and the skin, making it possible for the frog to breathe through the skin, and not the lungs.
Water is absorbed through the frog's skin.
because they can breathe through their skin
Many lower animals don't have noses and breathe through their skin.
a little out its mouth but mostly through its back skin
Frogs are amphibians. They can breathe using their lungs* on land, or absorb oxygen through their skins when underwater (this is called cutaneous respiration). Lacking diaphragm muscles, frogs on land may be said to "swallow" air : they inhale air through their nostrils, inflating skin sacs in their throats, then press down with the mouth muscles to force it into the lungs. (*At least one very rare species of frogs lacks lungs altogether, relying exclusively on absorption through the skin.)
all frogs breathe through their mouth (The throat of a frog 'pulsates' up and down which is causing air to be drawn in through, and pushed out from, its nostrils.) They also have the ability to breathe through their skin (Which allows them to breathe when hibernating in the bottom of ponds etc) This, and the ability to absorb moisture through their skin, is contributing to their decline across the globe as it means they are very succeptable to chemical and gaseous pollution.
Constantly, as they need to be moist to do it and if they dry out they die.
I know that the French eat frogs' legs, and that a frog can throw up its stomach. It can breathe through its skin.