9. Human Population and Health Disorders
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Class 12 Biology Notes All Chapters (New Curriculum)
Class 12 Biology Notes 2078: Complete Biology Guide (New Syllabus) | Questions Answers and Guide | Class 12 Biology Book Solution Guide | Class 12 Biology Book PDF 2078 Solution | Class 12 Biology Book Notes 2078 Guide | Class 12 Biology All Chapter Notes | Biology Chapter Wise Notes.
Preface
A Textbook of Biology – XII, strictly based on the curriculum developed by Curriculum Development Center (CDC), Ministry of Education, Science and Technology, Government of Nepal, is prepared exclusively for the students of Grade Xll who follow the science stream. The authors’ expertise gained through continuous teaching and learning for a long period of time and personal suggestions from many colleagues and senior experts have made it possible to conceive and develop the concept of the book in the present form.
The book consists of ten chapters; five each on Botany and Zoology respectively. It exclusively covers the scope of the content specified in the curriculum. Attempts have been made to keep the language of the book simple and lucid, appropriate to the level of the students, with updated and accurate information so as to enable the students to comprehend the subject matter easily. The simple, relevant, well-labeled, attractive, and self-explanatory illustrations shall make the subject matter more interesting and understandable with anticipation to equip the students for achieving the learning outcomes laid down in the curriculum. Likewise, the expressions and sentence structures have been made direct and less ambiguous as far as possible.
Every possible effort has been made to compose the text with the help of interesting figures, illustrations, elucidation, and simplification for its better understanding and effective presentation. The book is expected to meet the expectations of the students of Grade XII of the Biology group empowering their thinking ability as well. In addition, it is also expected to support for preparing further entrance examinations as the book has highlighted varieties of key questions for practice including multiple-choice questions at the end of each chapter.
We would like to take this opportunity to extend our sincere thanks to Mr. Shanta Gautam, MD of Vidyarthi Pustak Bhandar for his initiation to bringing out this book. Likewise, we would like to express our special gratitude to Mr. Yadab Prasad Adhikari and Mr. Tara Bahadur Basnet for their contribution in terms of editing the language of the text meticulously. Mr. Ramesh Maharjan deserves our thanks and appreciation for working hard with his expertise to give this text an attractive layout.
In spite of our best efforts, there might be certain printing errors left in the book. We will feel honored to receive constructive criticisms and suggestions from readers for the improvement of the book in its further edition.
Authors
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