2 answers:
Answer:
XD....
Explanation:
Gas exchange is the physical process by which gases move passively by diffusion across a surface.
Answer
Gas exchange is the delivery of oxygen from the lungs to the bloodstream
Explanation:
It occurs in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
write it in your own words, also can i have brainliest
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You only got one point because it is need of more detail. Hope this helps!