This book is a collection of challenging problems that a student has to face to get a chance to participate in the International Biology Olympiad (IBO). It is for Secondary category students. It contains all the questions and answers from the regional and national biology Olympiad and Bio-camp pre-selection exams of the past few years. Each chapter contains more than 1000 problems regional and national biology Olympiad and Bio-camp pre-selection exam accordingly. Like other books in the Biology Olympiad Question Bank series,it is also a independent book,which will be especially helpful for those who wish to participate in the Biology Olympiad,Secondary category. This is the 2nd book in the Biology Olympiad Question Bank Series. The book is for Secondary category students. It contains more than 1000 questions and answers from previous years of regional and national biology Olympiad and Bio-camp pre-selection exams.