Part of CBSE Class 9 Science on Lipi
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Immune System · CBSE Class 9 Science. Layered Body Defences: The body defends itself in layers, starting with physical barriers like skin and mucus, followed by phagocytes that engulf and digest any invading pathogen.
Immune System
Covers Summary, Central idea, Diagrams, Key facts, and more.
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- Summary
- Central idea
- Diagrams
- Key facts
- Word meanings
- Themes
- Common mistakes
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