Pick from:
(a). feet
(b). air
(c). triceps
(d). movement
(e). oxygen
(f). keratin
(g). gills
(h). lungs
Q: Fact 1: Skin is used for breathing air by frogs. Fact 2: Frogs breathe with their lungs and skin. Given the two facts above, what do frogs breathe with?
A:
(h).