Key Features: The Author Uses A Reader-Friendly, Narrative Style Making The Text Engaging And Accessible To A Broad Range Of Students. The Text Illustrates The Multidisciplinary Nature Of Public Health And The Complex Ethical And Political Issues Central To It. It Includes Discussions Of Epidemiological Investigation, Biomedical Research, Environmental Assessment, Analyses Of Individual And Group Behavior, Massive Data Collection Efforts, And Policy Developments. New To This Edition: New Discussions About U.S. Health Care Reform New Discussions Of The Globalization Of National Economies And Its Effect On The Health Of Populations Expanded Discussions On Health Disparities New Analysis Of What Went Wrong Just After Hurricane Katrina Updated Discussions Of Developments In Topics Such Are H1N1 Swine Flu, Hormone Replacement Therapy, FDA Regulation, HPV Vaccine Controversy Planning For Healthy People 2020 And Much More.

    From blurry vision, to crooked teeth, ACLs that tear at alarming rates and spines that seem to spend a lifetime falling apart, it's a curious thing that human beings have beaten the odds as a species. After all, we're the only survivors on our branch of the tree of life. Why is it that human mothers have such a life-endangering experience giving birth? And why are there entire medical specialties for teeth and feet? In this funny, wide-ranging and often surprising book, biologist Alex Bezzerides tells us just where we inherited our adaptable, achy, brilliant bodies in the process of evolution.The book traces the delightfully unexpected answers to these questions and many more:Why do we blink?Why don't our teeth regularly fit in our mouths?Why do women menstruate when so many other mammals don't?Why did humans stand up on two legs in the first place?

    Hundreds of 3D images take you through each of the body's systems, from skeleton and muscles to the skin and nails. Discover how every aspect of the body functions, how the heart beats, how we breathe, and how the body defends itself. Find out what can go wrong, with descriptions of the ways in which common disorders affect the body's systems.

    The book covers four major topics—cells, genetics, evolution/diversity, and ecology—followed by nine chapters on animal and plant physiology. Human applications and the most up-to-date information on important issues show readers how biology relates to their own lives. New Process of Science sections within the text draw readers into the material and provide real-world examples of how the scientific method is applied.Biology Today CELLS: Essential Chemistry for Biology, The Molecules of Life, A Tour of the Cell, The Working Cell, Cellular Respiration: Obtaining Energy from Food, Photosynthesis: Using Light to Make Food. GENETICS: Cellular Reproduction: Cells from Cells, Patterns of Inheritance, The Structure and Function of DNA, How Genes are Controlled, DNA Technology. EVOLUTION AND DIVERSITY: How Populations Evolve, How Biological Diversity Evolves, The Evolution of Microbial Life, Plants, Fungi, and the Move onto Land, The Evolution of Animals. ECOLOGY: The Ecology of Organisms and Populations, Communities and Ecosystems, Human Impact on the Environment. ANIMAL STRUCTURE AND FUNCTION: Unifying Concepts of Animal Structure and Function, Nutrition and Digestion, Circulation and Respiration , The Body's Defenses, Hormones, Reproduction and Development, Nervous, Sensory, and Motor Systems. PLANT STRUCTURE AND FUNCTION: The Life of a Flowering Plant, The Working Plant.For all readers interested in a biology text that focuses on the core concepts readers need to make scientifically informed decisions throughout their lives.