What could be more fascinating than the story of life? This reference series reviews the fundamental life-science concepts and examines all aspects of modern thinking about biology, ecology, evolution, genetics, microbiology, cell biology, and life forms including humans. This book looks at intricate relationships between organisms and their environment and how this delicate balance can be affected by climate change and human activities. Special features include numerous diagrams and illustrations, at-a-glance fact boxes, key Science Words, and simple experiments to try at home.