This is the chapter 6 of the book of science for class X. As the name suggests, if you think a little more, you will understand that this chapter is about basic biological process that take part in a human body. This thought will comfort you because you know you body. If you don’t it is the right time to know about it.
The first part is about nutrition and digestive system. Download this
Nutrition and Disgestive System note
as preliminary study.
Parts II, III and IV will soon follow. Do give your feedback.