Regulatory proteins control the cell cycle.
If the regulatory proteins are malfunctioning or absent, the cells may reproduce abnormally fast, causing a tumor.
11. C
12. A
13. B
16 and 17. Dont know sorry
experiment, in the scientific method the hypothesis is tested through experimentation and if confirmed is called a theory.
No. The amount of daylight each location receives everyday depends on the latitude of the location. It also depends on how the earth orbits the sun. As the orientation changes throughout the year, the sunlight on earth’s surface for the given location will also change.
