PAPER Topics

... were being fooled by spiders impersonating ants, squirrels that look like shrews, worms copying sea anemones, and roaches imitating ladybugs. There are even animals that look like themselves, which can also be a form of impersonation. The phenomenon of mimicry, as it's called by biologists, was first noted in the mid-1800s by an English naturalist, Henry W. Bates. Watching butterflies in the forests of Brazil, Bates discovered that many members of the Peridae butterfly family did not look anything like their closest relatives. Instead they bore a striking resemblance to members of the Heliconiidae butterfly family. Upon closer inspection, Bates found that there was a major adv ...

... to MS. While it is possible to inherit a genetic susceptibility to MS, it is not possible to inherit the disease. And even people who have all the necessary genes don't necessarily get MS. The disease, experts believe, must be triggered by environmental factors. So MS is not considered a hereditary disease.3 Until the definite cause of Ms is proved the treatment cannot be truly scientific. But there are treatments that are effective in dealing with symptoms. For instance, there are the common sense treatments that everyone, with or without an illness, should treat themselves with, which are: A healthy diet, exercise, sufficient amount of rest and to live your life as you would ...

... surfaces of the surrounding countryside. The slow release of heat tends to keep city temperatures higher than those of the unpaved faster cooling areas. On clear, still nights when the heat island is pronounced, a small thermal low- pressure area forms over the city. Sometimes a light breeze, called a country breeze which blows from the countryside into the city. If there are major industrial areas along the city's outskirts, pollutants are carried into the heart of town, where they tend to concentrate. At night, the extra warmth of the city occasionally produces a shallow unstable layer near the surface. Pollutants emitted from low-level sources, such as home heating units, tend t ...

... are either synthesized or extracted from natural products and are employed because of their pleasant smell. Scientific research suggests that there are human pheromones for both the male and the female. Females have a better developed sense of smell and testing indicates that they are more responsive to male pheromones than the reverse. Research over the years has found that the male pheromones belong to a class of compounds called steroids, in particular derivatives of androstenone, which are secreted by perspiration glands on our bodies. The compound androstenone, and a related product androstenol, are the most commonly used compounds for testing the effects of pheromones on human ...

... structure. This is where the primary structure is repeated folded so that it takes up less space. There are two types of folding, the first of which is beta-pleated sheets, where the primary structure would resemble continuous spikes forming a horizontal strip. The second type of folding is an alpha helix, which goes vertically forming a wavy line. An alpha helix is in the same shape of one strand of DNA. These new formations are held together by hydrogen bonds. The third level is the tertiary structure. The tertiary structure of a protein is a contorted secondary structure being twisted and folded all out of shape to form a 3-d complex. The type of bonding that holds these formatio ...

... be hard on animals such as bears, while lions, can suffer more in winter months. Veterinarians qualified to treat exotic animals, are not always present or available. As a result animals suffer and die due to the lack of proper medical attention. Physical confinement is very harmful physiologically and psychologically. The Born Free Foundation conducted a study that found that 22% of the time confined elephant’s present abnormal action, like repeated head bobbing or swaying. Confined bears spend 30% of their time pacing. Training is another concern. Physical punishment has long been the standard training method for animals in circuses. These methods are simply cruel. They include th ...

... 23). Lamarck's theory on was proven false because it incorrectly asserts that organisms can change their inheritable traits. This assertion was shown to be untrue when the theory of natural selection was conceived. The idea of natural selection was formed by both Charles Darwin and Alfred Russel Wallace in the mid-1800s. Unaware of each other's work, they developed the same theory independently. Originally the theory was scoffed at by the scientific community, but now it is widely accepted. The theory of natural selection states that individuals with the most favorable traits will be more likely to survive and pass these favorable traits on to future generations (Volpe 13). The c ...

... didn't believe Jack and were starting to raise the power up again. When Jack saw what they were doing he grabbed the security officer's gun and forced everyone out of the control room. After he locked the door he lowered the power down to 75% so the pumps wouldn't break. Jack agreed to have a one on one interview with Kimberly so the public would be warned. While the camera crew was on their way to do the live interview so was the S.W.A.T. team to get Jack out of the room. Also the people running the plant and who didn't believe Jack were up to something too. The operators were rerunning the wires to make a false accident that would distract Jack. The distraction would make it easier f ...

... analysis shows that the New World vultures are actually more closely related to storks than to the vultures of Europe, Asia, and Africa. Turkey vultures are remarkably successful birds. They range everywhere from parts of Canada and much of the United States to South America. At home in deserts, prairies and woodlands, they have even settled close to people in a number of urban and suburban areas. Observed in flight, the turkey vulture appears black with the underside of its wings grayish or silvery, giving the birds a two-toned appearance. They characteristically hold their wings in a slight V, or dihedral, thus aiding identification. On rare occasions, they hold their wings f ...

... call the President's attention to the fact that the ruthless employment of our submarines now follows the prospect of compelling England in a few months to make peace" - ZIMMERMANN Considering this telegram was sent to Mexico, it shows Mexican importance in this war. Mexico had two thousand miles of undefended coastline on the Pacific . Her northern boarder with the United States stretched for twelve hundred miles from Texas to California, touching all along all along its length against territory that had once been her own. Mexicans remembered the Alamo too. Mexico was, in short, the soft underbelly of the United States. Mexico also had a system of railways which connected to the Unite ...