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অনাক্রম্যতার ধারণা Class 9 Life Science | জীববিদ্যা ও মানবকল্যাণ | Chapter 4 Class 9 | LET'S IMPROVE

🧬 Class 9 Life Science | Concept of Immunity | Chapter 4 – Biology & Human Welfare

Welcome to LET’S IMPROVE 9 10! ✨
In this video, we cover Class 9 Life Science Chapter 4 – Biology and Human Welfare focusing on the Concept of Immunity.

👉 What you will learn in this video:
✔️ What is Immunity?
✔️ Types of Immunity – Natural & Acquired
✔️ Role of Body Defense Mechanism & Vaccination
✔️ Important Questions for WBBSE Exams

📌 This video is specially designed for WBBSE Class 9 students, very useful for Madhyamik 2026 & Madhyamik 2027 aspirants. With clear explanations, examples, and exam-oriented tips, this lesson will help you score high marks in Life Science.

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🔥 Stay tuned with Let’s Improve 9 10 for more important Life Science topics, last-minute revision strategies, and complete study guidance for WBBSE Class 9 & 10.

💡 Tip: Don’t miss the practice questions at the end – they will boost your exam preparation.

👍 If you find this video helpful, don’t forget to Like, Share & Subscribe for more study tips and lessons.

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