Answer:
-Continuous cell division
-Too little cell division
-Too little Death
Explanation:
Factors that affects cell division includes
-Nutrients
-Genetics.
-Chemical and toxics,
-Stress.
"Image result for why cells can form tumors
Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor."
