Question

e such a frog, newt and salamander need breathing systems for both air and water ​

Answer 1

Explanation:

The living amphibians (frogs, toads, salamanders, and caecilians) depend on aquatic respiration to a degree that varies with species, stage of development, temperature, and season. With the exception of a few frog species that lay eggs on land, all amphibians begin life as completely aquatic larvae.