You are presented with the question "what type of skin easily absorbs air to breathe through" and the following answer choices: 
- human
 - water vapor
 - mammals
 - scales
 - It expands
 - permeable
 - furry
 - to stay warm

Now knowing that amphibians have permeable skin that easily absorbs substances from the environment and amphibians have lungs, but they also breathe through their skin, choose the best answer.


 

      permeable   