Amphibians have permeable skin that easily absorbs substances from the environment, and some substances are harmful to the body and block biological systems. Given these facts, what can amphibians permeable skin do among the following options:
- Display wealth
 - Make money
 - resistance
 - Help them fly
 - Vibrates
 - Harm them
 - It expands
 - Damages them


 

      Harm them   