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features case studies for use in teaching anatomy, chemistry, environment, evolution, medicine and health, microbiology, molecular biology and genetics, physics and engineering, plant science, psychology, and other sciences. Cases focus on dozens of topics, including carbohydrates, cloning, diabetes, drug dosages, energy drinks, global warming, heart attacks, irradiation, the nervous system, nuclear power, pesticides, skin cancer, wetlands, and others. (State University of New York, National Science Foundation)
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In 1976, the National Aeronautics and Space Administration (NASA) landed Viking 1 and Viking 2 probes on the surface of the planet Mars with the express intent of searching for signs of life. While one of the "life detection" or microbiology experiments seemed to strongly suggest the presence of possible microbial life, a sensitive analytical device known as a gas chromatograph-mass spectrometer (GC-MS) failed to detect the presence of any organic material in Martian soil. |
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Disappearing marine iguanas |
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