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Welcome to eGyanKosh’s comprehensive study resource for Unit-3 of the Components of Immune System-II, specially curated for IGNOU students in 2025. This unit delves into the intricate mechanisms and components that form the backbone of the immune system, enhancing your understanding of immunology. Whether you are preparing for exams, seeking to deepen your knowledge, or simply exploring the fascinating world of immune responses, this study material is designed to support your academic journey. With easy access to essential concepts, diagrams, and explanations, you can download the content for free and study at your own pace. Join us in unraveling the complexities of the immune system, and empower your learning with eGyanKosh!