.... in a certain area because it would take too much time. Instead of actually counting the number of individuals in an area they would compare it with other areas where they know the population of individuals. In this way they can roughly estimate the number of individuals in a certain area. 4. What might happen to a rabbit population in an area where there are no predators? If there were a few rabbits in an area with no predators they would over-populate and cause serious damage to the ground. Since they are fast at reproducing there is nothing to control the population level as the predators do so they damage the eco-sy .....

.... a person should have in order to maintain a successful career. One of these characteristics that is the most important is patience. Patience is important because as an ecologist a person will have to at some point in their career talk to another person who knows nothing of or about ecology. Another reason why patience is important is because through the first years of being an ecologist finding and possibly attempting to tag an animals or gathering research material will be the main jobs of that person and will take a very long time to accomplish. For a person who is just starting out as an ecologist, manual .....

.... foot sheet. Gold is the most reflective and least absorptive material of infrared (or heat) energy. High purity gold reflects up to 99% of infrared rays. Gold is also an excellent conductor of thermal energy or heat. Since many electronic processes create heat, gold is necessary to transfer heat away from delicate instruments. Gold alloy is the most tenacious and long-performing material available for protection of these temperatures. Geologists use the latest technology such as satellite surveys and geochemistry to locate an ore deposit. Computers are used to design the mine, which requires precise and accurate measurement of .....

.... ways is using a chemical reaction. Simple chemicals (aluminum,sodium hydroxide, and water) can be reacted in the home to produce heavy hydrogen to power your furnace or your hot water heater . No electrical power at all is required. The reaction also gives off a tremendous amount of heat. Even the waste heat could be captured for heating the house. The resulting sodium aluminate is harmless and could be collected at recoiling centers for complete acid/base neutralization. This way is a simpler way than electrolysis produce hydrogen for heating the home, because in a automobile it would be harder to do. Electrolysis is anot .....

.... slightest notion of the extent to which they rely on this over-used and exploited natural resource. Canada as a whole "has far more water underground than on the surface - perhaps 65 times more than in surface lakes and streams",(Gorrie 70-71), and the same holds true for Ontario. Outside of the major urban centres which rely predominantly on surface sources for their water, most of Ontario relies on groundwater supplies. Although these groundwater supplies are abundant, not all are usable. In some cases the water has been polluted - as is the case in Elmira - and in others it is simply unpalatable because of high sulfur and other .....

.... last stages of death. Their hearts have bled into themselves, heart muscles softened and hemorrhaging , the brain clogged with dead blood cells (sludging of the brain), the liver bulging and yellow with deep cracks and the spleen a single hard blood clot. Babies with bloody noses born with red eyes lay dead from spontaneous abortions of affected mothers. It is the human slate-wiper, the invisible ultimate death, the filovirus named Ebola. The theme of Richard Preston's seems deal with man's one predator, the invisible one, the one thing that man cannot seek out and conquer, the one that lurks unseen and undetected in the shadows .....

.... date may be incorrect because that piece of tape to cover it has been lost for some time now. II Windex In the cupboard in the upstairs bathroom is where we keep the Windex. The Windex is blue and clearly labeled, with no chance of any person mistaking it for something else. The top part is tightly screwed on with Windex filled to ¾ of the original volume. I cannot find any expiration date, nor can I find any hint there ever was one. I should contact the product vender to see if the Windex is immortal or what. III Vinegar I go to the kitchen cupboard and find vinegar. Vinegar is what we use to mop our tile floor with. The .....

.... slowly as a result of mechanical weathering and chemical weathering. Mechanical weathering is the breakdown of rock into particles without producing changes in the chemical composition of the minerals in the rock. Ice is the most important agent of mechanical weathering. Water percolates into cracks and fissures within the rock, freezes, and expands. The force exerted by the expansion is sufficient to widen cracks and break off pieces of rock. Heating and cooling of the rock, and the resulting expansion and contraction, also aids the process. Weathering contributes further to the breakdown of rock by increasing the surface are .....

.... especially the multinational firms. Thus, if technological change is an important determinant of relative demand shifts, one would expect to observe patterns in other industrialized countries similar to those in the United States. Some of the recent studies report results for a variety of old industrialized (OECD) countries that are indeed consistent with the U.S. results (Collechia and Papaconstantinou, 1996; Machin, Ryan and Van Reenan, 1996). These countries vary a great deal with respect to changes in their situations with respect to trade, labor market institutions (like the importance of trade unions), and unemployment. .....

.... of illness was recognized at the end of the nineteenth century, yet the virus itself was not isolated until 1963. One hundred and seventy six million people are carrying the surface antigen of this one virus globally, and the infection causes a vast amount of illness and death, including most of the fatal cases of liver cell cancer.3 To prevent the wide spread of this disease, a rush for vaccination in the elementary schools for children in the K-6 levels had been implemented in Canada. However, the most effective way to prevent chronic infection is to vaccinate against it during the neonate stage up to the age of 5, the period .....