Tumor biology is the study of the biological processes that contribute to the development and progression of tumors, which are abnormal growths of cells that form lumps or masses in the body. This field of research aims to understand the molecular and cellular changes that occur in normal cells that lead to the formation of tumors, as well as the interactions between tumor cells and their surrounding environment. Tumor biology research is important for developing new strategies for cancer prevention, diagnosis, and treatment. It involves studying various aspects of tumor growth, metastasis, angiogenesis, and resistance to treatment, among others. Researchers in this field often use a combination of techniques from genetics, cell biology, biochemistry, and other disciplines to gain a comprehensive understanding of the complex processes involved in tumorigenesis.