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This book is a culmination of nearly 3.5 years of hard work and dedication. Losing my father to COVID - 19 in 2021 was like losing a part of my identity. There is not a moment I am not reminded of him. Sometimes it gives me tears, but it also gives me strength. Strength to be the kind of person he wanted me to be, to do the kind of things he wanted me to do. And above all to live a life that he would be proud of! The constant love and appreciation of my students have been my driving force in these testing times and perhaps this is the reason I decided to write this book. This book contains lecture notes covering all topics in Biology related to one day competitive exams. The lecture notes are organised into different sections. Each chapter consists of systematically arranged notes with diagrams, flowcharts and important questions. There are total 10 practice sets (each of 25 questions) from various topics at the end of the book for last minute revision.
This book also consits of previous year questions of SSC CGL (TIER-I & TIER-II), CDS, NDA, BPSC, UPPCS, MPPCS & HARYANA PCS.
I have tried my best to make this book error free. However, to err is human. In case you find any mistake, kindly drop a WhatsApp message to +917351572127.

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