I would think they breathe with there mouth underwater.
Frogs open and close their mouths to breathe. They don't have diaphragms to help them breathe, so they use muscles in their mouth to push air into their lungs. They also use this action to help them swallow food.
Frogs breathe just like humans, taking in air through their mouths and exhaling it. They are also able to breathe through their skin.
Actually frogs dont breathe from their lungs. They have lungs but they don't use them because their skin is so thin that they can breathe from it.
Bats breathe through their mouths and noses.
Frogs primarily use their skin to absorb oxygen from the environment through a process called cutaneous respiration. They also have buccal pumping, where they use their throat muscles to push air into their lungs. Additionally, frogs can absorb a small amount of oxygen through their mouth lining while keeping their mouths closed.
by having a zygote
The genitals
Because they need big enough mouths to get some of those big bugs in their mouths that they eat.
with their mouths
Frogs and other amphibians.
don't know external gills
Cows need a nose to breathe. They eat a lot of grass with their mouths so they use their nose to breathe.