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Lungs and gills

Specify some of the differences between lungs and gills?

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Lungs and gills are richly vascularised organs which perform the function of gas exchange between environment and circulatory system. Lungs differentiate from gills in a way that they are saclike structures internal to the organism and specialized in the process of gas exchange in the terrestrial environment. Branchiae, are internal or external laminar structures which are in direct contact with water and specialized in the gas exchange in aquatic environment.

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