"Chemical and Biological" refers to the study of substances and their interactions, focusing on both chemical compounds and biological organisms. This field examines how chemicals affect living systems, including the processes of metabolism, growth, and disease. It encompasses various disciplines, such as biochemistry, molecular biology, and toxicology. In practical applications, Chemical and Biological sciences are crucial for developing pharmaceuticals, agricultural products, and environmental solutions. Researchers in this area work to understand how chemicals can be used safely and effectively to improve health and sustainability. This includes studying pathogens, toxins, and the effects of pollutants on ecosystems.