1.

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

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Answer:

LUNGS PLAY a major role in the RESPIRATORY system. In HUMANS, a pair of lungs are designed in such a way that they are lined by a thin membrane, the smaller tubes called bronchioles a balloon-like structure called alveoli and network of blood capillaries INCREASE the surface area for exchange of gases.



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