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Class 9 biology introduces fundamental concepts of life science, focusing on the structure and function of living organisms. Topics include cell structure, tissues, diversity in the living world, and human body systems like digestion, respiration, and circulation. Students also explore plant biology, reproduction, and health. This course builds a strong foundation for understanding biological processes and prepares students for advanced studies. Engaging in practical lab work and real-life examples enhances learning, making biology both informative and enjoyable.