.... Gasoline contains hundreds of different hydrocarbons, or compounds containing the chemical elements carbon and hydrogen(Gasoline). When the gas is burned in the engine of the car, several byproducts result. These exhausts include hydrocarbons and oxides of three elements: Carbon, nitrogen, and sulfur(Emissions). Tiny amounts of poisonous trace elements such as lead, cadmium, and nickel also are present. Everything contained in the exhaust affects the environment intensely. Auto engine exhaust contributes about 50% of today's atmospheric pollution, and in highly populated and indus .....

.... and rigidity. Other than providing the rigid infrastructure, it protects vital organs like the brain], serves as a complex lever system, acts as a storage area for calcium which is vital for human metabolism, houses the bone marrow within its mid cavity and to top it all it is capable of changing its architecture and mass in response to outside and inner stress. It is this dynamic remodeling of bone which is of primary interest in microgravity. To feel the impact of this dynamicity it should be noted that a bone remodeling unit [a coupled phenomena of bone reabsorption and bone formation] .....

.... and acknowledgment of the minimum complement of genes necessary for a free-living organism. Of the organisms that have already had their genomes sequenced, a number are of particular importance. For example, Mycoplasma genitalium has a complete nucleotide sequence that is only 580,070 base pairs long, and as such, is believed to be the smallest genome of any free-living organism. Because of it's unique size, this genome presents a way of studying a minimal functional gene set. In addition, complete genome sequencing projects are currently being carried out on a number of microbial pathogens i .....

.... will be a good deal more. Other disposal types, such as sub- seabed and space disposal may prove to be cheaper at a later time. This is a cause for concern, but there are a greater amount of reasons to further and eventually finish the Yucca Mountain Project. One is the desert climate naturally occurring in the western United States. The weather is dry and warm and their are very few natural disasters, such as earthquakes. Also, this part of the nation has a lower water table than the rest of the country. This reduces the risk of water contamination in case of a breach. This is only on .....

.... of births can be attributed to improved cooperation between China's Ministry of Forestry and the country's zoos involved in panda breeding, as well as to an exchange of information and technology between Chinese and western scientists. Some problems are, however, still experienced with animal husbandry, particularly the care and welfare of infants. Disease and rejection by the mother have been the main cause of death among cubs. Investigation of these, and other aspects of panda reproduction, now form an active part of the ongoing research programme. THREATS The main threats to the Gian .....

.... it is needed rather than try to misuse it for personal gain. Genetic engineering can provide medical benefits to humans, but limits have to be set. Our body contains one hundred trillion cells, inside most cells is a nucleus that contains a complete set of the body’s blueprints. Those blueprints are twisted into forty-six packets called chromosomes. Unravel a chromosome, and you get the long, thread-like molecule called DNA. Within the DNA are the blueprints, called genes, for which make proteins. The DNA molecule has a twisted, laddershaped structure (the famous double helix). .....

.... on the ground. It walks with its front feet turned on the sides to protect its claws, which the animal uses to rip open ant nest before eating. Then it flits its long tongue and literally licks up the ants. The anteater precedes to rip oben a termite or ant hill with its clawed hand and work its tubular snout down into the heart of the colony, trapping the insects on its tongue's sticky coating (Encarta ‘98). The anteater also uses the claws as a defense mechinism. The natural predators of the giant anteater are the jaguar and the puma. Anteaters defend themselves against the large ca .....

.... in liquid form it is of great importance as a propellant for guided missiles and rockets2. I have chosen the element "Oxygen" because without Oxygen, human beings would not be able to live. Oxygen is probably the single most important element in the world as we know it. With out Oxygen we would not breath, have water, eat plants. Oxygen's Electron configuration is 1S2 + 2S2 + 2P4, it's electron dot symbol is: . Gaseous oxygen can be condensed to a pale blue liquid that is strongly magnetic. Pale blue solid oxygen is produced by compressing the liquid. The atomic .....

.... forests in an historical range from Texas to the Atlantic coast (Jackson, 1986; Reed et al., 1988). Picoides borealis nest in clans or family groups that usually consist of one breeding pair and 2 non-breeding male helpers (Jackson, 1986 ). This group establishes and defends a territory that includes foraging habitat and nesting "cavity trees" (Copeyon et al., 1991; Jackson et al., 1986; Rossell and Gorsira, 1996). Red-cockaded woodpecker clans excavate cavities in living pines, and have established a living and foraging routine in conjunction with the southeastern pine forests an .....

.... and judgment. A weakening of the nerve cells in the brain causes these symptoms and later results in death. Another single-gene disorder is the Tay Sachs Disease. People who inherit the faulty Tay Sachs gene lack a crucial enzyme that is needed to break down fatty substances in brain and nerve cells. As a result, these substances build up in such large quantities that the central nervous system gradually stops functioning and the person dies. Symptoms usually become evident within the first six months of life, and most children die before reaching the age of four. 1 in 3,6 .....