Every culture known to history and anthropology has seen in the heavens distinctive patterns, called constellations, and formed by the stars. are usually comprised of bright stars that appear close to each other. Oriental cultures (the ancient Chinese, for example) formed intricate patterns from some of the faintest stars, creating hundreds of...
Hepatitis B can be prevented with a highly effective vaccine, but this year ten to thirty million people will become infected with the hepatitis B virus. I feel that because this disease is preventable, only knowledge can help reduce the number of people infected. Hepatitis B is a serious liver disease caused by the hepatitis B virus...
Carbon Monoxide Poisoning Imagine that it is the first really cold night of the winter season. You begin to feel a chill in the house so you decide it's time to turn on the furnace. So you get up out of your chair and adjust the thermometer. After a while you notice that it has not really warmed up much in the house. So you decide to che...
Summary: This paper looks at the controversial issue of climatic change. In particular, it develops the question of if and why earth's climate is changing? The roles of man, naturally occurring trends, and earth's cycles are considered, and an outlook for what can be expected in the near and distant future is given. 'The une...
A mutation is an alteration in the genetic material of a cell that is transmitted to the cell's offspring. may be spontaneous (the result of accidents in the replication of genetic material) or induced by external factors (e.g., electromagnetic radiation and certain chemicals). take place in the genes, which are found in the long, chain...