.... which are evergreen shrubs belonging to many plant families such as the rose, oak, heath, buckthorn, and sumac. Common shrubs of the are chamise, scrub oak, mountain lilac, manzanita, and sumac. The plants have evolved to withstand long, dry summers and strong autumn Santa Ana winds that create frequent fires. The leaves of the plants are mostly thickor needle like so it can reduce water loss through evaporation. The chamise, for example, has small, needle-like leaves that store up and save the moisture in the plant. The is the home of many species of reptiles, birds, and mammals. There are animals such as the alligator lizard, western rattlesn .....

.... sixth century B.C. and in the mediterranean areain ancient Greek and Roman times. It is still used in many parts of the world. The abacus consists of beads strung on rows of wires suspended within a rectangular frame. A common form has a piece of wood dividing the beads, with five beads on one side, and two on the other side of the wood on each wire. Calculating Machines and their Inventors: Through the centuries, several mathematical geniuses invented machinesto aid them in their calculations. The machines were never widely used and generally had no direct path to the later development of electronic computers. Example: Pascal: Blaise .....

.... are spring with its new beginning and autumn with its incipient decline. Mother nature wakes after a long restful sleep, stands, claps her hands, and calls spring to attention because this is the time of reawakening, a sudden surprising emergence after a period of concealed existence. I rise early because the days are becoming longer now. As I walk and explore this new morning, I cannot help but notice the activity that surrounds me. Gardens are being tilled and planted for the ground is warm and will soon break with sprouts of future bounty. Butterflies of every color are seen flittering and fluttering, while insects of all kinds are heard b .....

.... ozone is a major ingredient in the formation of smog. Ground level ozone is responsible for irritating eyes, damaging lungs, and it complicating respiratory problems. Hydrocarbons aren't the only pollutants released through car exhaust. Two more pollutants released through car exhaust are carbon monoxide and nitrogen oxide. The first reduces the flow of oxygen to the bloodstream, and could harm people with heart disease. Nitrogen oxide is formed when a car engine gets hot. It contains chemicals that aid in the formation of ground level ozone as well as acid rain (2 factsheet, OMS-5). Acid rain destroys the outsides of buildings, statues, et .....

.... power plants, industrial boilers, smelters, businesses, schools, homes and vehicles of all sort. These various energy sources contribute 23.1 million tons of sulfur dioxide and 20.5 million tons of nitrogen oxides to our atmosphere worldwide. When fossil fuels are ignited like oil and coal, they release carbon dioxide, a so-called greenhouse gas that traps heat within the earth's atmosphere which causes global warming that is taking place right now. Also, it releases sulfur dioxide, nitrogen oxide and various metals (mercury, aluminum) that are released into the atmosphere that reacts with other airborne chemicals (water vapor and sunlight) to prod .....

.... the 3rd world and the reuse of needles are a common practice, due to lack of funds and supplies. Though recovered patients pose no serious threat, the virus is present up to 7 weeks after being treated. Vomit and diarrhea contain the infected blood and mucus so any contact with this, e.g. in poor drinking water can cause contraction of the virus. Luckily enough Ebola is not airborne and in some cases due to its self-limiting nature, it has been known to die out within a person before killing the host. In one case when a Swiss researcher found the Ebola Tai virus, she contracted it from a chimpanzee. This was during an investigation into the .....

.... can change the chemical profile of the soil which can lead to detrimental biological effects. Flame atomic spectroscopy provides a technique that can quantify metal concentrations in the extracts of the soil samples and consequently examine the relationship between distance from the point of road salt application and akali metal concentrations. Experimental Soil preparation: Six surface soil samples were collected at the intersection of Cold Spring Lane and the exit ramp of Interstate 83, in northwest Baltimore city. These samples were collected at distances from the roadway of 0m, 2m, 4m, 6m, 10m, and 20m. These samples were dried in a convectio .....

.... organisms. There are four main levels of a protein, which make up its native conformation. The first level, primary structure, is just the basic order of all the amino acids. The amino acids are held together by strong peptide bonds. The next level of protein organization is the secondary 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 a .....

.... steroid use in this country is still growing and will continue to do so unless a new solution is devised. The vast popularity of anabolic steroids is due to their powerful strength and muscle building properties. Strength and portrayed strength (a large muscular physique) are two factors that are directly related to the inherent need that man has to exert dominance over other males. This can also be verbally, intellectually, physically, and aesthetically. In our society we have always praised the athletes that achieve the most amazing physical feats or that have achieved cosmetic perfection. Lets face it, having large muscles enhances confiden .....

.... the play Twelfth Night by Shakespeare, a singer by the name of Arion was sentenced to be thrown into the sea by pirates. Before he was thrown into the sea, he asked for one last wish: to sing a song and then jump overboard himself. The pirates granted him this wish, and he began to sing a high-pitched song. When he was finished with his song, he jumped overboard and was saved by a dolphin which carried him two hundred miles to shore. Obviously, dolphins and humans have been interacting together throughout recorded history. According to the theory of evolution, it is most likely that the dolphin was once a land mammal. It is likely that sixty m .....