Designed to provide students and researchers with a solid foundation to the study of biology, this volume introduces readers to hundreds of important terms and concepts. The volume begins with a detailed introduction of the field of biology. Written in clear, understandable language, entries include a complete discussion of the subject, related fields, key terms, plus illustrations, models and diagrams.A diverse collection of materials is discussed in this volume, including: biodiversity; cell types; evolution; embryology; genetics; nutrient requirements; pollution effects; and population growth.