NCERT Biology | One Shot Revision Why Do We Fall Ill? 🤧 | सबसे आसान | Class 9 | Board Exam 2026

School & Competitive Exams
“बीमारी अचानक नहीं आती… कारण समझो!”

“Healthy body ke dushman kaun?”

“Har illness ke peeche science hai!”

“Sick hona normal hai… samajhna important hai!”

“Why we get sick? NCERT ka sabse important chapter!”

“Exam में marks चाहिए? Ye video miss mat karna!”
👉 Watch till the end for clear concepts + easy explanations.
In this video, we explain Why Do We Fall Ill? Class 9 Biology chapter in a simple & easy way.
Perfect for boards, exams, and concept clarity.
Watch till the end for quick revision & examples.

📌 Subscribe to ‪@beyondTopper‬ /‪@TheUdaysir‬ study for:
Session Details:
✔️ Class: 9
✔️ Subject: WHY DO WE FALL ILL?
✔️ Master Teacher: UDAYV SIR
✔️ Session Type: Recorded
✔️ Chapter: WHY DO WE FALL ILL?
✔️ Series Name: Eg Target 95+
✔️ Topic Name: WHY DO WE FALL ILL? - One Shot Full Chapter Explanation/Revision
✔️ Topics to be Covered: WHY DO WE FALL ILL? CLASS 9 CBSE SCIENCE || FULL CHAPTER IN 1 SHOT || BIOLOGY, HEALTH DISEASE, DIFFERENCE BETWEEN SIGN AND SYMPTOM, ILLNESS, IMMUNISATION, WBS, IMMUNE SYSTEM, HOW ANTIBODIES AND ANTIBIOTIC WORKS, ACUTE AND CHRONIC DISEASE, INFECTIOUS AND NON INFECTIOUS DISEASE, CONTAGIOUIS, COMMUNICABLE

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Session Overview:
In today's session Uday sir in his #Target95+ series dives in the subject of chemistry and teaches us #WHYDOWEFALLILL?

So let's study about this interesting topic and enrich our learning.

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Time Stamp⏱
0:00 Intro
0:50 Health & Disease
7:52 Sign & Symptoms
10:27 Types Of Disease
15:23 Question Time
15:42 Malnutrition, Hereditary And Disfunction Of Organ Examples
16:04 Means Of Spread
17:36 Infectious Agents
19:29 Immune System (Antibodies & Antibiotics) and Immunization
30:46 Outro


One Shot Biology & Science

Conceptual Learning

Exam-Oriented Preparation

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📘 This lecture is useful for:

Class 9 Biology Students

CBSE Board Exam Preparation

NEET & IIT Foundation


NCERT Biology Class 9

CBSE Class 9 Biology

NEET Foundation Biology

IIT Foundation Biology

Cell Structure in Hindi / English

Class 9 Science Biology Lecture
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