Gases, like oxygen and carbon dioxide, move across cell membranes using simple diffusion. When ions can pass through the membrane without the aid of other molecules, and since oxygen and carbon dioxide can pass through the membrane, it is known as simple diffusion.
Like "fossil fuel" or "respiratory system"?
Answer:
Yes
Explanation:
It's safe to assume this because it is the best way to make sure that your sources are reliable and valid.
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