Moreover, he also classified the animal kingdom into two sections – animals with red blood and the other which did not have. He divided the plant kingdom into three classes – herbs, shrubs, and trees. Aristotle first attempted to classify them scientifically. Since the beginning of civilisation, humans tried to categorise the entire known living population for the sake of their uses like shelter, clothing, and food. Also, the taxonomic categories and taxonomical aids of these living organisms are explicitly described here. This chapter further encapsulates the prevailing diversity that is prominently visible in every part of the world, irrespective of weather and environment. Students can learn about various physiological systems that help living beings to sustain and carry forward their species. While explaining the definition of living things, this chapter also represents the ecological clash and cooperation among these members. The first chapter of NCERT books for class 11 biology begins with a wide range of living organisms present in this ecosystem. Let’s start with unit 1, that includes four sections. The entire biology syllabus of CBSE board is divided into four units where each unit comprises of several chapters. So, students can download NCERT biology class 11 PDF anytime to increase their grip on the subject for both exams efficiently.Ĭhapter Wise Overview of Class 11 Biology NCERT PDF Book Both plant and animal kingdom, which is equally important for the board and NEET exam are discussed here. Moreover, 11th NCERT biology book also helps students to explore their knowledge about their daily life as well. Students can gather information to a great extent by reading this book. NCERT books for class 11 biology serves as the best source of fundamental concepts of biology. Thus, it is known as life science or science of life. Significance of Biology Class 11 NCERT PDFīiology is a branch of science that deals with living organisms and life.

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