In which vertebrate class is cutaneous respiration most highly developed?
A)fishes
B)amphibians
C)reptiles
D)birds
E)mammals

Question

Quizplus · Accepted Answer

Cutaneous respiration refers to gas exchange through the skin. This is most highly developed in amphibians, as their moist skin allows for efficient diffusion of gases, such as oxygen and carbon dioxide. Other vertebrate classes (such as fish, reptiles, birds, and mammals) have developed other mechanisms, such as gills in fish, lungs in reptiles, birds, and mammals, and specialized skin (such as lungs in the skin of some reptiles).

In Which Vertebrate Class Is Cutaneous Respiration Most Highly Developed