| A | B |
|---|
| growth factor | broad group of proteins that stimulate cell division |
| apoptosis | programmed cell death |
| cancer | common name for a class of diseases characterized by uncontrolled cell division |
| benign | having no dangerous effect on health, especially referring to an abnormal growth of cells that are not cancerous |
| malignant | cancerous tumor in which cells break away and spread to other parts of the body, causing harm to the organism's health |
| metastasize | to spread by transferring a disease-causing agent from the site of the disease to other parts of the body |
| carcinogen | substance that produces or promotes the development of cancer |
