3 years ago

9. Knowing what you know about how a substance travels in

Biology

1 answer:

Romashka-Z-Leto [24]3 years ago

6 0

Answer:

Higher

Explanation:

Molecules such as oxygen move from a higher concentration to a lower concentration across a semi-permeable membrane. This process is called simple diffusion.

Therefore, for oxygen to leave the alveoli and enter the blood, there would need to be a higher concentration of oxygen inside the alveoli and a lower concentration of oxygen in the blood.

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