For most amphibians, what is the major respiratory organ?

Answer 1

Respiratory strategies vary widely among amphibians. Larval forms breathe via gills while adult forms may have gills or primitive lungs. Among gilled adult forms, the gills may be external (as in axolotls) or internal. Some salamanders have neither lungs nor gills and respire transcutaneously. Even when other respiratory structures are present, the skin is the principal respiratory organ for most amphibians. Therefore, it is important that they be able to keep the skin moist.

Answer 2

Terrestrial species - cutaneous respiration and also absorb O2 through the pharynx. Some have lungs to utilize this O2 and others absorb it directly into the bloodstream

Aquatic amphibians have gills (mud puppies for example) and perform branchial respiration, O2 is absorbed directly into the bloodstream via the gills

Answer 3

Their skin