… to discuss is Premenstrual Syndrome, or PMS. It is a constellation of symptoms that directly precedes menstruation. These symptoms vary from woman to woman. PMS is a hormonal disorder characterized by a regularly recurring group of symptoms. These sympto…

… cluster of cells that will, in the course of time, become a human being begins throbbing, signaling the development of a primitive heart. Scarcely four weeks more pass before an intricate network of veins and arteries the size of a pea forms and…

… is so reduced that they are threatened with extinction. Thousands of species are included in this category. The International Union for the Conservation of nature and Natural Resources publishes a list of threatened mammals, birds, reptiles, amphibians,…

… oil refineries, and pulp and paper mills put the health of Puget Sound at risk by not fully meeting their responsibility to control the toxic chemical pollution they generate, according to a detailed report by People For Puget Sound based on the environm…

… IN LEBANON Click here to go to these sections: · Agriculture · Atmosphere · Biodiversity · Desertification and Drought · Energy · Forests · Freshwater · Land Management · Mountains · Oceans and Coastal Areas · Toxic Chemicals…

… I was very curious about it. This disease effects the digestive system, which effects the rest of the body systems. Bulimia is a disease that is a serious eating disorder characterized by alternating binge eating and purging. The Bulimic first eats…

… an object falls through a fluid it accelerates until it reaches its terminal velocity. At this speed the forces acting on it are balanced. My task is to investigate the factors that affect the terminal velocity of a falling object. Key…

… and Effect Word Count: 666 November 8, 2000 Beach Erosion: A Problem for All Living only a few miles from the great Atlantic Ocean, the beach is a place where I have spent many days of my life. I have watched tremendous storms with powerful…

… Acetylcholine Choline CNS, parasympathetic nerves Serotonin 5-Hydroxytryptamine (5-HT) Tryptophan CNS, chromaffin cells of the gut, enteric cells GABA Glutamate CNS Glutamate CNS Aspartate CNS Glycine spinal cord Histamine Histidine…

… nitrogen, which contain most important organic compounds in a cell are proteins, nucleic acids, lipids, and carbohydrates,Water makes up 60 to 65 percent of the cell.Some cells are complete organisms, as the unicellular bacteria and protozoa; others,…