This is an excellent teaching supplement for introductory biology courses. The book introduces a set of problems that guide students through the fundamental steps necessary to develop critical thinking and problem-solving skills. Exercises are designed to measure student learning and help individual students focus their efforts on those areas that need improvement. This book presents practice problems for the most challenging topic areas in introductory biology. It provides detailed solutions to all problems on the accompanying CD-Rom. It features computer-based and 'pen-and-paper-based' problems that increase in level of difficulty within each chapter.