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Search results 23971 - 23980 of 30573 matching essays
- 23971: The Prairie
- The Prairie An ecoysystem is all the biotic and abiotic components of an environment. The prairie is located in North America. The tempaturevaries greatly and the environment doesn't get enough rainfall to support trees. One organism in the ecoysystem that adapts well is grass which withstands grazing animals and occasional fires. Producer: An autotroph organism (grass). Consumer: Organism that eats producers (caterpillars, bison ... consumers (praire felcon, eagle). Decomposers: Organisms that uses nutrients from dead plants and animals, it starts the chain over (bacteria). Say that an organism was removed from the web, such as a caterpillar. Though it's not the only grass eating organism it would still mess up the web. Say you put the bison in its place, that part would work, except for the fact that the indigo bunting wouldn't eat the bison. Which would also eliminate that from the food chain and so on.
- 23972: Push/pull Theory
- ... water must be lifted from the roots to the leaves to make a single pound of organic tissue. This tremendous amount of water is required to undergo photosynthesis each and every day of a plant's life. But how does a tree lift hundreds of gallons of water hundreds of feet in the air against the force of gravity? Scientists have developed two theories to explain this "impossible" phenomenon. In the ... negative pressure. Cavitation is the formation of air bubbles in the xylem column. These bubbles disrupt the flow of the water molecules, breaking the chain of succession. This explains why even the tallest trees don't grow beyond 350 feet. The need for constant pressure also makes the theory inconclusive. If there is not a constant negative pressure exhibited throughout, the plants' insides would boil. So what keeps the pressure constantly ... transport.htm • http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/X/Xylem.html • http://www.k-hahn.de/index.html • Wright,K (2002). Antigravity Plumbing. From Discover, Vol. 23, No 9, pps: 20-21 • Webster's New World Dictionary (1995). Xylem, p:685. Guttation, p:264. Cavitation, p:96. Root Pressure, p:512 . Transpiration, p: 627 • Encarta (1999).–computer version-- . Xylem, Transpiration
- 23973: Korean History
- ... At that time, Korea had four countries. The four countries, are Ko-Gu-Ryo, Pack-Che, Shilla and Ka-Ya, Ka-Ya incorporated with Ko-Gu-Ryo in 200 B.C. because this country couldn't handle the War between the other countries. At first, one of these three countries, Ko-Gu-Ryo, was strongest and biggest. This country developed toughness and sprightliness by having many years of War with China ... later stages. Shilla was absorbed by Ko-Gu-Ryo in 918. The later Ko-Gu-Ryo was named by Ko-Ryo. Ko-Ryo was the country of marked individuality with an aristocracy. When Ko-Ryo's society settled, the powerful families joined into a government. And they owned huge amounts of land and at the same time, they made a strong foundation of their country. And their culture was become marked ... many of civil wars under Japanese control. The years between 1910 to 1950 is very important time of Korea history. Korea was refunded the country under a US trusteeship about 5 years later, Korea didn't have any power to make a new country. So the United States settled in south part of the Korea and Russia settled North part of the Korea. North Korea became communist by Russia and ...
- 23974: Nontraditional Tradtions
- ... creating a rather confusing family tree. Some people choose to live their lives alone, but may still be close enough to some friends to consider them family. Whatever the circumstances, many of us honestly don't know how to celebrate together. We may even see the word "tradition" as something stultifying and old, having no meaning for or application to us personally; something usually being forced upon us by someone who ... not true. It need not be big or religious at all. I believe a tradition is something that you do once that feels good, so you do it again and again. The tale in Frost's "Mending Wall" can be viewed as an impromptu tradition. The two neighbors needing to repair the wall after the winter chill, find time to converse with each other about what's on their minds. For example, every Sunday my dad makes tea and puts out two cups, his and mine. I am used to this. If I had to reach in the cupboard to get ...
- 23975: Atomic Bombs
- ... brought together by hand. This incident, which was dramatized in “Fat Man and Little Boy”, pre-dated remote-control assembly of such components, but the hazards of manual assembly were known at the time (U.S. Nuclear Accidents, Internet). Only 9 months after that, a similar problem occurred which there were 8 people that got radiation exposure and 7 of them died because of it. In the past, there were very ... the plant, forcing its closure. A pump malfunctioned, siphoning water from the baths onto the floor; the water eventually was drained into the sewer system of the heavily populated town of Dover. The NRC wasn’t informed of the accident until ten months later. In 1986, the company and one of its top executives were convicted by a federal jury of conspiracy and fraud. Radiation has been detected in the vicinity ... of hand the material can get if it is not closely supervised at all times. One little mess up and it could do as much damage as to destroy a whole area up to 100’s of miles so that no one could even step ground there for the rest of their lives. More present day accidents include this one in February of 1993 where a reactor in New Jersey ...
- 23976: Character Analysis for The Portable Phonograph
- Character Analysis for The Portable Phonograph Walter Van Tilburg Clark's short story, The Portable Phonograph, is a tale about the last survivors in the world after the total destruction of a war. The author gives clues and hints of this throughout the beginning by writing ... gets one out to use because on this particular occasion, their is a musician visitor with them. The other men act as excited as children. They listen to the record and then leave the doctor's house. Doctor Jenkins is nervous and suspicious at the end of the story when the other men leave. "With nervous hands he lowered the piece of canvas which served as his door, and pegged it ... that "everything he has" is at risk with the greed that a time like this could produce in the other men. He is secure and comfortable with the things that he has and he doesn't trust the others. He then hides his treasures away in a safe place after they leave. As he gets into his bed he feels the "comfortable piece of lead pipe" with his hand. The ...
- 23977: Make Drugs Legal
- ... seems to be impossible. We want to believe the war on drugs seems to be accomplishing a lot but this is not true. Different options need to be considered. Legalization is an option that hasn't recieved a chance but should be given one. Although many people feel that legalizing marijuana would increase the amount of use, marijuana should be legalized because it will reduce the great amounts of money spent on enforcement and it will increase our country’s revenue. There are also many benefits that can be uncovered to help people if legalization of marijuana is given a chance. Alcohol was once sold and used, but people were doing it illegally. The 21st ... of life for many people. Victims of glaucoma and those needing antinausea treatment, for example, would find marijuana easily available. Also, the cloud of suspicion would disappear, and doctors could get on with investigating marijuana’s medical uses without fear of controversy. In the essay, “Drugs”, Vidal states, “ Nevertheless many drugs are bad for certain people to take and they should be told why in a sensible way” (321-322). ...
- 23978: The Cambrian Period
- ... lot of things happened both geologically and biologically. The Cambrian Period was the first period of the Paleozoic Era, it lasted from 570 million years ago to 500 million years ago, 70 million years. It¹s very important because it corresponds with the firs t appearance of abundant fossils especially Trilobites, which characterizes a succeeding point in time. During the Cambrian Period the lapetus Ocean appeared, the predecessor of the Atlantic Ocean, which separated the young North American and Eurasian ... final stages of development. Gondwanaland was a very large continent made up of what is now South America, Africa, Arabia, Madagascar, India, Australia, and Antarctica. Large shelled organisms first emerged during the Cambrian. Also Earth¹s atmosphere contained the same amount of oxygen as it does now, enough to sustain the metabolic rate of a complex organism. Running down the middle of the North American continent was a large inland ...
- 23979: Acid Rain 6
- ... and the pH change is dangerous because the acids can cause serious damages in their young. The sulphuric acid in the water also affects the fishes in the lake. Sulphuric acid interferes with the fish's ability to take in oxygen, salt, and nutrients needed to stay alive. Fishes aren't the only aquatic species being harmed, other creatures living in lakes also take punishments. Acid particles are also threat to buildings and statues. Corrosion will occur when acids are deposited onto it. For example, the ... animals has been linked with brain damage in children as well as nerve disorders, brain damage, and death. Also, aluminum has been associated with kidney problems and, was also suspected to be related to Alzheimer's disease. After learning about all that that are being affected by acid rain, are their any solutions to this problem? Acid pollution is a serious problem, but there are many ways that can help ...
- 23980: Acne
- ... treat the Acne early. The longer a person waits the worse the problem can get. Scarring may appear if one waits too long to take car of their situation. Once a pimple in noticed, don't squeeze or scratch at it. This will help illuminate the spread of more pimples and scarring. Your hands carry many bacteria that will help to spread infection. This is not a good thing to do ... then an occasional pimple here and there. Doctor are trained to deal with the disease in all its many forms. It is a part of growing up. When you take action against the Acne, that's when you can get over it. The problem hardly ever goes away on its own. (1998). Acne. Acne. Available: http://www.ucompass.com/acne.htm (1998). Acne Foaming. Facts about Acne. Available: http://www.co ... Site. Available: http://members.sol.com/_ht_a /AcneSite/living.htm. (1998). In your face!. KidsHealth. Available: http://kidshealth.org/kid/normal/acne.html. Willis, Judith Levine. (1998). One the Teen Scene: Acne Agony. U.S. Food and Drug Administration. Available: http://www.fda.gov/opacom/catalog/ots_acne.html. (1998). What is acne?. Acne Support Group. Available: http://www.m2w3.com/acne.
Search results 23971 - 23980 of 30573 matching essays
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