S. Chand Science Biology Part 3 Class 9 is a comprehensive textbook covering the biology portion of CBSE Class 9 science syllabus including topics like The Fundamental Unit of Life, Tissues, Diversity in Living Organisms, and related biological concepts. This well-structured guide presents biology fundamentals through clear explanations, labeled diagrams, and illustrative examples. Each chapter includes solved examples, NCERT-based questions, and practice exercises to strengthen conceptual understanding. The book emphasizes practical applications and real-world connections, making biology accessible and engaging. Ideal for building a strong foundation in biological sciences and preparing thoroughly for board examinations.