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1. Two reasons why cells divide:
Cells divide because they grow large and it becomes more difficult for the cell to move things across the cell membrane.


2. How is a cell's DNA like the books in the library?
As more people move into a town, the more they will have to wait for a book (aka DNA).

3. The solution to the problem caused by cell growth:
A process called cell division. Where the cell separates after duplicating.

4. As a cell increases in size, which increase more rapidly, its surface or its volume?
The surface area increases more rapidly than the volume.

5. Calcuate the surface area, volume, and ratio of surface area to volume of an imaginary cubic cell with a length of 4cm.
surface area=96cm2
volume ratio=3:2
volume=64cm3