@gbschroder1 asked 9 months ago.

How a single-celled organism can obtain its needs by diffusion, if a multi-celled organism can’t?

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Answers

@pefebegawu answered 8 months ago.

Single-celled organisms can obtain their needs by diffusion because they have a large surface area relative to their volume, meaning a greater proportion of their cells are exposed to the outside world.
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@eppemiryrra answered 8 months ago.

The answer is because the single-celled organism is not trying to obtain its needs by diffusion, it is getting its needs directly from the source. The multi-celled organism is not getting its needs directly from the source.
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@makuzalletto answered 8 months ago.

One of the ways in which living organisms get the things they need is by diffusion. Diffusion is the movement of molecules from areas of high concentration to areas of low concentration. Water molecules, for example, tend to move from areas of high water concentration to areas of low water concentration.
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@affolanno answered 8 months ago.

There are two types of diffusion: Mass and Fick’s. Mass diffusion takes place when the rate at which a substance moves through a medium is dependent on the concentration gradient, which is the difference in concentration between two points.
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@zadebyla answered 8 months ago.

 

A single-celled organism can obtain its needs by diffusion, but a multi-celled organism can't.

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