What is the study of life?

• A. Biology
• B. Chemistry
• C. Ecology
• D. Physics

Answer: (A)

Biology is the study of life. It looks at what living things are made of, how they function, grow, reproduce, and how they interact with each other and their environments. It covers a wide range of topics—from cells and genetics to physiology, evolution, and ecosystems—giving a broad understanding of living systems at all levels.

Chemistry focuses on matter and chemical reactions, not life itself. Physics studies the laws governing energy, force, and motion. Ecology, while important, is a branch within biology that specifically examines how organisms interact with their environment, not life as a whole. Because the question asks for the broad study of life, biology is the best fit.