Where is the list and definition? There is none provided
Cancer is the uncontrolled growth of abnormal cells in the body. Cancer develops when the body's normal control mechanism stops working. Old cells do not die and instead grow out of control, forming new, abnormal cells. These extra cells may form a mass of tissue, called a tumor.
It is the process in which an embryo, and later a fetus, develops and grows.
Your body used the respiratory system (lungs)