Science 10 complete #1-12 on Significant Digits Worksheet Biology 122 Period 1 complete Review WS 10-1 as well as the four questions below:1. What are two reasons why cells divide rather than grow indefinitely?2. True/False.  As a cell increases in size, it usually makes extra copies of its DNA.3. What determines the rate at which food and oxygen are used up and waste products are produced?4. True/False.  As a cell grows in size, its volume increases much more rapidly than its surface area.