Respiratory organ of adult frog
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The frog has three respiratory surfaces on its body that it uses to exchange gas with This is because the lungs, which only adults have, are poorly developed.
Adult frogs breathe through their lungs and exchange gases through their skin and the lining of their mouths. Frogs rely on their lungs to breathe when they are active and need more oxygen than skin respiration alone can provide.
Though they have functional lungs, much of a.
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Tadpoles hatch from frogs' eggs and can only survive in water. As they undergo metamorphosis to become adult frogs they change in many ways, losing their.
Description:Posted on April 21, by Sarah Metamorphosis is remarkable. A fish-like tadpole remodelling itself into a land-dwelling frog is a process so bizarre and fascinating that it continues to inspire the hoarding of containers of frog spawn for eyewitness accounts. One of the most dramatic changes during metamorphosis is the change from water breathing in tadpoles to air breathing in frogs. Living things must exchange gases usually oxygen and carbon dioxide for survival. Oxygen is needed by the body for cellular metabolism and carbon dioxide is produced as a waste product. Tadpoles commonly hatch with external outside the body gills which within a few days are replaced by internal gills covered with a flap of skin called the operculum.