Question

how are lungs designed in human beings to maximise the exchange of gas​

Answer 1

Explanation:

lungs are designed in human beings to maximize the exchange of gases because of the presence of alveolar sac. this alveolar sac helps to maximize the exchange of gases

Answer 2

Answer:

Lungs contain a balloon like structure called alveoli. It increases the surface area for exchange of gas.it is richly supplied with blood vessels. Its wall are thin.

Explanation:

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