Fundamentals of Life Sciences is intended for PG-CUET, Graduates and all Life Sciences Universities. This book is important because of its bounded concepts and explanation related to each concept of life sciences, particularly in Here importantly highlighted about the Microbiology, Biotechnology, Zoology, Botany, Biochemistry, Diversity in Life Forms, Ecology, Evolution and Applied biology. This book contains seven chapters which contains different concepts. Although I have made every effort to make the book error free, I am under no illusion. I welcome comments, criticism and suggestions from the readers to evolve the contents. It is one of the Best Reference books that will help every student irrespective of the academic background to perceive elementary mathematics right. However, the book is fully syllabus oriented and written by considering their understanding ability.