.... are 'stock resources'. Fossil fuels are consumed by use and the current consumption patterns are non-sustainable. It is recognised that energy conservation and the development of renewable energy sources will be needed to sustain economic growth. The quantity of ultimately recoverable fossil fuels is limited by geology and remains a matter of suspicion, but the view of the 1970s that scarcity was imminent is still popular. It is the 1973 Oil Crisis marked the transition from abundant, low-cost energy to an era of increasing prices and scarcity. Today concern .....

.... of the 15 million attempts to commit suicide because of depression and about 16,000 of those people succeed. Depression loosely defined is a disorder marked by a state of deep and pervasive sadness, dejection and hopelessness, accompanied by feeling of fatigue apathy, and low self-worth (Bourne and Russo 1998 p. A-24). Though that seems like a very comprehensive definition it is characterized by many different symptoms to combine to one effect on the psyche. Depression itself is not only widespread but also associated with many other psychological conditi .....

.... of chimpanzee: the common chimp and the bonobo (sometimes called the pygmy chimpanzee). Great apes are bigger than and also much less acrobatic. However, they are still good climbers. While orangutans spend most of their life in trees, where they use their long arms and dexterous hands and feet to grasp branches and vines, chimpanzees frequently come to the ground to feed. Gorillas are primarily terrestrial, but even fully grown adult males have been observed clambering among tree branches more than 15 m (49 ft) high. Chimpanzees and gorillas—the apes .....

.... evil spirits or demons controlled the mentally ill. Not only the Greeks believed in the evil spirit theory, writings from the early Babylonian, Egyptian, and Chinese civilizations have also shown evidence that was believed to be a possession by demons-using beatings, restraint, and starvation to try to drive out the evil spirits. These beliefs somewhat cooled down as time continued to move on, but once again popped up as America was starting to be formed. In 1692 and 1693 the Salem witchcraft trials began. At this point in time was suggested to be associ .....

.... the heavens are in constant motion, and because this motion is quite ordered and exact, it is possible to project the positions of the sun, moon, and planets for any given time. Astrologers use this information to draw-up a horoscope and forecast the "influences" that will affect the soul at that time. Astrologers usually do not predict actual events in the future. They can only say what might happen, or could happen, but not what will happen--much like a weather forecast; although many psychics do make predictions, and astrology is the tool .....

.... epinephrine and norepinephrine are generally similar, although they differ from each other in their effects. Norepinephrine constricts almost all blood vessels. Norepinephrine is formed by intravenous infusion to combat the fall in blood pressure associated with types of shock. Norepinephrine is formed in the body from the amino acid tyrosine, and epinephrine is formed from norepinephrine. Mineralocorticoids steroids control the overall body fluid. Mineralocorticoids are critical to regulate concentrations of minerals in extracellular fluids. The major target .....

.... tobacco, petunias, tomatillo) and various weeds (nightshades, jimson weed). It may have been this association with the nightshades which originally led people to believe the tomato to be poisionous. It was therefore fortunate that Miller changed the species name to esculentum which roughly means "edible". The common cultivated tomato belongs to the genus Lycopersicon. This genus exhibits a vast reservoir of genetic variability which remains largely underexploited. Some disease resistance, which is now a part of most commercially available cultivars, has been .....

.... that the human brain changed a lot after the human/chimp evolution. With the exception of the olferactory bulb (scent), all brain structures are larger in humans than in apes. The neocortex (part of the cerebral cortex), for instance is over three times larger than in chimps, even though chimps and humans are pretty close to equal in body weight. Each side of the brain is diveded by the central sulces into independant halves. Just before the central sulcus lies the post-central cortex, where the opposite body half (right side for left brain, left side fo .....