This present book has been specially published for the aspirants of ‘Post Graduate Teachers (PGT–Biology) recruitment exam’ organised by Navodaya Vidyalaya Samiti (NVS). The book also comprises Solved Previous Papers for aspirants to be familiar with the exam pattern, the type of questions asked and their answers. Detailed Explanatory Answers have also been provided for the Selected Questions for Better Understanding of candidates.The book contains ample amount of Study Material and MCQs in exercises with Answers and explanations, wherever required. It is believed, the book will prove very useful for study, practice and during the precious moments before the exam.The book is highly recommended for the aspirants to Sharpen their Problem Solving Skills with thorough practice of actual exam-questions and hundreds of practice questions provided in the book, and prepare themselves to face the exam with Confidence, Successfully. While the specialised study and practice material of this book offers the Ground for your Success, your own intelligent study and practice with it will ensure you a Great Career as a Successful Teacher.