Biology is the scientific study of life and living organisms, encompassing their structure, function, growth, evolution, distribution, and interactions. It is a broad and diverse field that explores life at different levels, from the molecular and cellular scale to entire ecosystems. The course covers fundamental concepts such as cell theory, genetics, evolution, and the classification of organisms. It examines how living things obtain and use energy, how they reproduce and pass on genetic information, and how they interact with their environment. Biology also investigates human anatomy and physiology, plant and animal biology, microbiology, and ecology. Through both theoretical learning and practical laboratory work, students develop skills in observation, experimentation, data analysis, and critical thinking. Advances in biotechnology, medicine, and environmental science rely on biological knowledge, making the subject relevant to various career paths in healthcare, research, conservation, and many other fields.