Question

how are the allied designed to maximum the exchange of gases​

Answer 1

Answer:

The alveoli are thin-walled and richly supplied with a network of blood vessels to facilitate the exchange of gases between blood and the air-filled in alveoli. ... They have a balloon-like structure that provides maximum surface area for exchange of gases.

Answer 2

Answer:

$\succ$By increasing the surface area of the lungs for gaseous exchange.

Explanation:

Alveoli are small pouches or sacs. Large number of alveoli occur inside each lung. The whole surface area of an alveolus functions as a respiratory surface. Due to large number of alveoli in each lung, a very large area of respiratory surface becomes available (about 80m²) for exchange of gases. Thus, alveoli are designed to maximize the exchange of gases.