Fact 1: Most amphibians breathe with gills as larvae and with lungs as adults.

Fact 2: Frogs are the most durable of the amphibians.

Given the two facts above, answer the question "What is the most durable species that breathes with gills as larvae and lungs as adults?" with the following options: 
- Snakes
 - Salamanders
 - edible
 - salmon
 - Oak
 - Frogs
 - Lizards
 - a fish


 

      Frogs   