Although amphibians use gills during their aquatic larval stage and develop simple, sac-like lungs as adults,?

Although amphibians use gills during their aquatic larval stage and develop simple, sac-like lungs as adults, some may also depend on an additional mechanism for gas exchange. What is it?



a. diffusion of gases into and out of capillaries through their thin, moist skin

b. countercurrent exchange mechanisms

c. inflatable air sacs that store air

d. thin projections of the body surface that protrude into the surrounding waterAlthough amphibians use gills during their aquatic larval stage and develop simple, sac-like lungs as adults,?
A, according to MB. By the way, afcbird1 is apparently too good to help out a fellow student. Just ignore her.Although amphibians use gills during their aquatic larval stage and develop simple, sac-like lungs as adults,?
a. diffusion of gases into and out of capillaries through their thin, moist skin