Answer:
Amphibians are known to have very thin, moist skin and lay eggs without shells. Because of this, they are extremely sensitive to biological changes, such as chemicals in the air or water, and climate change. This makes amphibians ecological indicators; this means that amphibians are the first signs of an unhealthy ecosystem. When large amounts of amphibians grow or die, this means there is a problem with the ecosystem.
Step-by-step explanation:
My answer is self-explanatory; it is not plagiarized.