This allowed contraction and relaxation of muscles of body wall, changing volume of thoracic cavity and allowing amphibian to suck air in and expel it. This is a reasonably effective respiratory ...

Amphibians have moist, permeable skin that allows them to absorb oxygen and water, which is crucial for their survival in wet environments. This skin also plays a role in respiration. Reptiles ...

Unlike reptiles, amphibians lack scales, relying instead on their skin for protection and respiration. Amphibians lay eggs in water or damp environments. Amphibian eggs are soft and jelly-like ...