| A | B |
|---|
| cancer | disease in which cells grow and divide uncontrollably, damaging the parts of the body around them |
| mutation | damage that causes a change in DNA |
| tumor | a mass of abnormal cells that develops when cancerous cells divide and grow uncontrollably |
| chemotherapy | the use of drugs to kill cancer cells |
| cancer spreads to other places | through the bloodstream |
| DNA | contains the instructions for life processes |
| radiation | kills fast growing cells |
| Main causes of cancer | smoking and high fat diet |
