For one-semester, non-majors introductory biology laboratory courses with a human focus. This manual offers a unique, extensively class-tested approach to introductory biology laboratory. A full range of activities show how basic biological concepts can be applied to the world around us. This helps you to: * gain practical experience that will help you understand lecture concepts* acquire the basic knowledge needed to make informed decisions about biological questions that arise in everyday life* develop the problem-solving skills that will lead to success in school and in a competitive job market, and * learn to work effectively and productively as a member of a team. The Fourth Edition features many new and revised activities based on feedback from hundreds of students and faculty reviewers, including a new evolution exercise.