This is an indispensable A-Z guide to the key terms in Biology. Each entry begins with a clear, one-sentence definition and is followed by explanation and examples. The more important the term, the more detailed the entry to help answer examination questions. All entries are carefully cross-referenced and the A-Z format makes it very easy to use. The Schaum's A-Zs are designed to be valuable at every stage of a course: - definitions and explanations will help new students break through the barrier of jargon - the carefully developed explanation of key concepts will strengthen projects and provide clearly written reference to supplement classwork - contains review lists (see below) of the key concepts (with individual entries listed) to help build exam student's grasp of terminology and theory. This reference is intended as a complement to Biology course textbooks and to test preparation guides, such as the 5 Steps to a 5 AP Guides and Schaum's Outline titles that provide broad introductions appropriate for first year college. Key concepts covered in Schaum's A-Z Biology include: Cell structure and function; Biological molecules; Enymes and enzyme action; Respiration and photosynthesis; Genes and genetics; Selection and evolution; Ecology; Classification of living organisms; Nutrition and digestion; Transport systems; Gas exchange; Homeostasis Excretion; Responding to the environment; Reproduction