Small size in living cells

The small size in living cells can best be attributed to which of the following factors:

- the small size of most molecules

- the large number of the cells that are necessary to form an organism

- the rare favorable surface-to-value ratio of smaller cells

- the short life spans of large animals

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...ze of a cell is the surface to volume ratio which determines a cells ability to exchange nutrients and wastes. It is a mathematical relationship and I have attached a word document explaining it.

Substances within a cell must have access to the plasma membrane (the cell's boundary) in order to be exchanged. Within the cytoplasm , materials move by diffusion. ...