AP BIOLOGY

Detailed explanation-1: -Cancer is a disease in which some of the body’s cells grow uncontrollably and spread to other parts of the body. Cancer can start almost anywhere in the human body, which is made up of trillions of cells.

Detailed explanation-2: -Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. These contrast with benign tumors, which do not spread.

Detailed explanation-3: -A tumor is a mass or group of abnormal cells that form in the body. If you have a tumor, it isn’t necessarily cancer. Many tumors are benign (not cancerous). Tumors can form throughout the body.

Detailed explanation-4: -The process by which cancer cells spread to other parts of the body is called metastasis.

Detailed explanation-5: -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.