* A complete course, from cells to the circulatory system * Hundreds of questions and many review tests * Key concepts and terms defined and explained Master key concepts. Answer challenging questions. Prepare for exams. Learn at your own pace. Are viruses living? How does photosynthesis occur? Is cloning a form of sexual or asexual reproduction? What is Anton van Leeuwenhoek known for? With Biology: A Self-Teaching Guide, Second Edition, you'll discover the answers to these questions and many...
