Question

How are the lungs designed in human beings to maximise the area for exchange of gases
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Answer 1

Answer:

in lungs there are millions of alveoli. The presence of millions of alveoli in the lungs provide a very large surface area for the exchange of gases. And the availability of large surface area maximise the area for the exchange of gases

Answer 2

Answer:

The alveoli provide a surface where the exchange of gases can take place... the walls of alveoli are survived with an extensive network of blood vessels