Biology| Class 9| Chapter 2| Lecture 11| Theory, Principle and Law, Data Organization and Analysis

In this video, I have discussed Biology Class 9 Federal Board Chapter#2-Solving Biological Problems. In this I have discussed the following:
What is Theory?
What is Principle or Law?
What is Data?
What is Data Organization?
What is Data Analysis?
What is Ratio?
What is Proportion?
Importance of Data Analysis.