give reason why adult frog has no gills...
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Adult frog has no gills because he has capability to take oxygen in air and the organ which is not used for much time got extinct
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Frog breathing. Breathing is a gas exchange, taking in oxygen from the surroundings and letting out carbon dioxide. All frogs start life as aquatic tadpoles, breathing underwater through internal gills and their skin. Then later most develop into land animals with lungs for breathing air.
. Once mature, frogs lose their gills and are able to bring oxygen into their bodies through functioning, though comparatively underdeveloped, lungs. Frogs rely on their lungs to breathe when they are active and need more oxygen than skin respiration alone can provide
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