👉 Oncis, in biology, is a type of cancerous growth or tumor that arises from abnormal cells in the body's tissues, typically affecting the skin, mucous membranes, and other parts of the body where it is located. It can be caused by various factors such as mutations, exposure to certain chemicals, or genetic abnormalities. Oncis are often associated with a specific type of cancer known as melanoma, which is characterized by the development of a mass of cells that grow uncontroll
