Question

Frogs breathe through their skin as well as their lungs.

Answer 1

Hint: Amphibians such as frogs use more than one organ of respiration during their life. They have thin and permeable skin which allows them to take in oxygen, even when completely submerged.

Complete answer:
To answer this question, we have to know the respiratory system in the amphibian. Most amphibians breathe through lungs and their skin. Their skin has to stay wet in order for them to absorb oxygen so they secrete mucous to keep their skin moist. Oxygen absorbed through their skin will enter blood vessels right at the skin surface that will circulate the oxygen to the rest of the body.
The frog has three respiratory surfaces on its body that it uses to exchange gas with the surroundings by -the skin, in the lungs and on the lining of the mouth.
While completely submerged all of the frog's preparation takes place through the skin. The skin is made of thin membranous tissue that is quite permeable to water and consists of a huge network of blood vessels. The fine membranous skin permits the respiratory gases to readily diffuse straight down their gradients between the blood vessels and the surrounding environment.

A frog also breathes much like humans, by taking air in through their nostrils and down into their lungs.

Note:Frogs also have a respiratory surface on the lining of their mouth on which gas exchange takes place comfortably. While in the remaining, this process is their major form of breathing, only fills the lungs sometimes. This is because the lungs which only adults have are not properly developed.