Biology is about understanding how living organisms work. During the last couple of centuries, our knowledge of Biology has grown at a staggering rate. Living Science ‘Biology’ for Class X conforms to the latest CBSE syllabus. The book contains all the material which is a part of the core syllabus. We have written this book to give you a thorough introduction to Biology at the Secondary level. We have presented the various scientific concepts as vital, compelling and meaningful which might otherwise seem dull. Each part of this book has been carefully planned to make it student-friendly and present Biology in an interesting, understandable and enjoyable manner. We have tried to stress the applications of what you are learning so that you can relate the facts to the living world