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Lungs have much greater surface area than the skin does, and since they are protected by the rib cage, skin, and other tissues, can be much more delicate.

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Q: Why have lungs replaced skin for gaseous exchange?
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Related questions

What is the Process of respiration in earthworms?

In earthworms the gaseous exchange takes place from their skin


Does oxygen and carbon dioxide exchange in reptiles in the lungs and skin or just the lungs?

Just through the lungs.


What organs can be replaced?

Lungs heart liver eyes skin and kidneys


What is the respiratory organ of earthworms?

The earthworm has no special respiratory organs. Gaseous exchange occurs through moist skin by diifusion.


What provide the greatest surface area for gas exchange?

Gas exchange occurs in the alveoli of the lungs.


What are two ways frogs can exchange gases?

They breathe through lungs while on land,and by their skin while in water Through their skin.


Where do red blood cells exchange carbon dioxide for oxygen?

There is exchange of CO2 and O2 in the lungs of aerobic vertebrates. The process is generally referred to as gas exchange. It depends on what organism you're talking about. It could be the skin, gills, lungs, or any other structure. In the lungs is the Alveoli.


What is the four phases of gas exchange in humans?

THROUGH SKIN. through lungs through gills


How do animals exchange gas?

They take in oxygen and release co2 by their skin, lungs and sometimes tissue in their throats.


What organ in which the oxygen-carbon dioxide exchange takes place?

As occurring within the Lungs, these processes are called transpiration.


What is the respiratory system of a frog?

a frog can be classified having gills and lungs tadpoles have gills while frogs[or adult]have lungs


Do adult frogs have lungs?

Yes, most adult frogs have fully functional lungs plus they can exchange oxygen and carbon dioxide with the air through their skin also or in simpler terms they can breathe through their skin too albeit not in a very efficient manner but enough to keep them alive underwater for extended periods. The African clawed frog is one of the rare exceptions in that the adults are fully aquatic, exchange gas through their skin and do not have lungs.