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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Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

grin007 [14]

Answer:

4 1/4

Explanation:

17/4 = 4/4 + 4/4 + 4/4 + 4/4 + 1/4

4 + 4 = 8

8+8=16 = 16/4

16/4 + the 1/4 remaining in the equation = 17/4

so 4/4 + 4/4 + 4/4 + 4/4 = 4

4 + 1/4 = 4 1/4

sorry if you couldnt follow along. I am not good at explaining things but the answer is 4 1/4

(I also took the test)

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