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Respiratory organ of adult frog

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.
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Respiratory system

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Respiratory System of Frog (With Diagram) | Vertebrates | Chordata | Zoology

Respiration -- the exchange of gases between an organism and its environment -- in adult frogs can occur in three different ways, either independently or in tandem. Adult frogs breathe through their lungs and exchange gases through their skin and the lining of their mouths. At the larval stage of their development, frogs lack functional lungs but are able to take in oxygen through a set of gills. All frogs go through a process called metamorphosis, in which they mature from their larval, or tadpole, stage into adult frogs. One of the hallmarks of this process for most frog species is the transition from having gills to having functional lungs. A newly hatched tadpole's gills are external. These gills take in oxygen when water passes over them.
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Frog is an amphibious animal i. Under water, during hibernation frog respires by only skin. On land cutaneous respiration continues as usual. Thus cutaneous respiration take place always.
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But is that really true? How do amphibians breathe — and can they breathe underwater? The Class Amphibia includes three extant orders which are groups of families, which are in turn groups of genera, which are groups of species :. This order includes all of our modern frogs and toads.
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