As energy crises, environmental mismanagement, and disease outbreaks increase in our world, an understanding of biology is becoming more important than ever. These laboratory exercises give readers a greater understanding of themselves and of current issues in a biological context. Explores the natural world through Web-based exercises and inquiry-based investigation. Focuses on the scientific method and on science as a process. Features end-of-chapter Web exercises. References other human endeavors such as art, literature, and history. Offers a new exercise in human evolution incorporating recent paleontological discoveries. Presents more information on various animal groups. Approximately 10% of problems revised and rewritten for greater clarity and less redundancy. A useful source for science teachers (grades 7-12) and for anyone interested in learning more about biology.