What are two structures used by frogs to obtain oxygen?

Answer 1

Amphibians as larvea or tadpoles use gills to obtain oxygen. They then go into a metamorphic stage where they have both gills and developing lungs, and as adult they breath through lungs as we do.

Answer 2

Almost all frogs have lungs, but in most species the inhaled air never reaches the lungs, the oxygen is extracted throug tissue in the throat. This is also the usual way most salamanders breathe. Apart from inhaling air, frogs are capable of extracting oxygen with their skin.

Answer 3

Frogs aquire oxygen with lungs as other animals do.

They start off with "gills", swimming around, but when they develop, they loose the gills and develop lungs for breathing air like we do.

I dont think any frogs live their entire life submerged.

regards.

they breathe through skin whilst in water and then when out of the water they use their lungs

Answer 4

Frogs can breath through their lungs, and through their skin.

Answer 5

they breathe through their lungs , they can also however breathe through their skin.

Answer 6

the frog's throat pulls air through the nostrils and into the mouth, down the throat, and into the lungs which makes the body expand, and when the frog exhales, the body contracts.

Answer 7

lungs and its skin.