GIVE REASON: BABY FROGS BREATHE THROUGH GILLS THEN WHY ADULT BREATHE THROUGH LUNGS AND MOIST SKIN? PLEASE GIVE REASON IN A SMALL DEFINATION
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Respiration in Tadpoles
Tadpoles have tiny external gill flaps that extract oxygen from water as it passes over them. Tadpoles open their mouths as they swim and take in water. As the mouth closes, muscles transfer the water to the gills. These consist of thin membranes called lamellae, which take oxygen from the water where it enters the blood stream through the process of diffusion. Tadpoles can also rise to the surface and gulp oxygen from the air. As tadpoles mature the gills are absorbed by the body as other respiratory systems develop.
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