Feature Summary

Part VII contains new chapters. "Human Evolution" traces human evolution from the origin of cell(s) to the evolution of modern humans. This unique chapter presents the principles of evolution, while at the same time reviewing human evolution. "Ecosystems and Human Interferences" presents the principles of ecology and shows how human activities disrupt biogeochemical cycles, leading to untoward effects including pollution. "Conservation of Biodiversity" explores the current biodiversity crisis and shows how the loss of so many species can be detrimental to humankind.

Technology aids are organized according to the major sections on the e-Learning Connection page found at the end of each chapter. Students can easily determine the available resources to help explain difficult concepts. The same design is utilized for the Online Learning Center, so that students can quickly find an activity of interest. Other activities help students make full use of the Bioethical Focus boxes and Human Systems Work Together boxes.

Relevancy of the text is enhanced due to the inclusion of such topics as sexually transmitted diseases, eating disorders, allergies, pulmonary disorders, hepatitis infections, xenotransplantation, modern reproductive technologies, human cloning, the human genome project, and gene therapy to treat cancer.

Health Focus and Ecology Focus readings support the two major themes of the text; the study of human anatomy and physiology and the role of humans in the biosphere. A new Bioethical Focus box found throughout the text introduces students to many of the bioethical questions that face us every day. Challenging questions are provided that can be used as a basis for class discussion. The Online Learning Center allows students to further explore these issues by taking a quiz, reading articles, and writing an essay explaining their point of view.

The vibrant art program adds vitality to illustrations and enhances the appeal of the text. Micrographs are integrated into illustrations and provide realism. Visual focus illustrations give a pictorial overview of key topics. Color coding is used both for biological molecules and for human tissues and organs.

Homeostasis is again emphasized in this edition. An icon s calls attention to those portions of the text that discuss homeostasis. Each systems chapter has a major section that discusses how that system works with other systems of the body to achieve homeostasis. This section is supported by a Human Systems Work Together box, which also shows how that organ system works with the other systems making homeostasis possible.

2002 McGraw-Hill Higher Education
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