The surface across which breathing in animals | vedclass

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(A) $1$. The respiratory surface must be very fine and delicate to facilitate the efficient and rapid exchange of gases via diffusion.$2$. Because the

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By placing them deep inside the body.

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(A) $1$. The respiratory surface must be very fine and delicate to facilitate the efficient and rapid exchange of gases via diffusion.$2$. Because these surfaces are fragile, they must be protected from external environmental damage, dehydration, and mechanical injury.$3$. Organisms protect these surfaces by placing them deep within the body, often within specialized structures like lungs or gills.$4$. For example, in humans, the exchange of gases occurs in the $alveoli$ located deep inside the lungs, which are further protected by the rib cage and diaphragm.

The surface across which breathing in animals occurs is very fine and delicate. How do organisms protect such surfaces within their body?

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