Cancer cells do not have the DNA program to stop replicating new cells the way normal cells do. This causes them to rapidly reproduce causing tumors.
1) 2 (or 3?)
2) 3
3) 1 or 2?
4) wave 2
5) wave 3
6) the number of occurrences in a period of time
7) the more wavelengths in the shorter amount of time, the higher the frequency
the answer is four hope this helps :)