Titles in Barron’s Painless series are designed for middle school and high school students, helping them excel in subjects they might expect to be either hopelessly boring or excruciatingly difficult. The authors are all experienced teachers, adept at winning the hearts and minds of adolescents, and skillful in adding a light, humorous touch to even the heaviest and grimmest topics. This book proves that life science can be both intriguing and enjoyable. The author helps students solve puzzles and find answers to questions as they learn to classify living things from bacteria and viruses to plants and animals. Other topics covered include cells, parts of the plant, animals in their environments, human body systems, genetics, and more.