ICSE Class 8 Answered

The chapters of Biology are very vast and they need to be studied under certain criteria- that may be structure, function, principles, hypothesis etc. So, these all conditions need to be divided under topics so that it will be easy to study and remember. For example, if you are studying human heart, then you cannot study the pumping of the blood without knowing the structure of the heart. First the chapter will tell u about structure, then its function and then its principles like how to keepo heart healthy, diseases, etc. So, these need to be placed under some topics.