.... left unplanted for a year so as not to exhaust the soil. This system led to problems, because dividing the land in half led to shortages in the production of food because only half of the field was being used. This system of agriculture needed some minor adjustments to increase the production of food without destroying the soil in the process. This new system came about around the year 800. Farmers began to use a new system, the three-field system, to farm their crops. The three field system used one large field like it’s earlier counterpart. The only change, was that the field was divid .....

.... who helped to increase the evidence supporting evolution. Darwin developed the idea of “natural selection” where living things that reproduced in large numbers and survived became dominant and other living things adapted to survive, or they died. Francis Crick, a scientist, co-discovered DNA which opened new doors to the idea of evolutionism (History). DNA is the pattern by which people are created as individuals. Now Evolutionism is the only origin of life that can be taught in public schools. However, in private schools, students may be taught whatever the school wishes to .....

.... is nested inside the cells of almost half of all cases. Sinha defines Mycoplasmas as “the smallest self-replicating life form that latch onto white bloodcells, which are part of the body’s disease defenses, with a hooklike tip; then they transmit chemical signal that force blood cells to behave abnormally (Sinha 70).” Mycoplasmas can be difficult to detect, for they burrow deep inside cells. If there was a definition for it would be a disease found after the Gulf War which is related to Mycloplasma fermantane. The only possible definition for the moment can only be defin .....

.... you are artistic, ornamental horticulture and landscape design might be right up your alley. If you worry about feeding the hungry, you should study plant pathology or plant breeding. At some larger universities, you can even study specific types of , each with its own department. These departments include argonomy (field crops), microbiology (microbes like bacteria and fungi), horticulture (fruits, ornamentals, and veggies), and plant pathology (diseases pertaining to plants). If you are a people person, you might even be interested in teaching or providing public service. After hea .....

.... because I could see them concentrate and do everything right instead of just screwing off and not concentrating at all. I never knew that a grasshopper had so many complex parts to it. The jaw alone amazed me. I must say that the temperature in the room made those little things stink like a son of a gun. But all in all it was fun and I can honestly say that I actually learned something this year. In conclusion I would just like to state that this project has been a blast, I don’t even mind writing these little papers because it is fun. I'm not just saying this to suck up but .....

.... deaths. They suspect that the Red Tide off of the coast of southwest Florida has some connection with these mysterious deaths. A red tide is a bloom of flagellates which are deadly to marine life, but cause no harm to the human population. Another possible cause is a virus that is unknown to scientists. Many people believe that this problem will eventually stop an the manatee population will flourish, but others are rather pessimistic. Ecological Problem: The manatee population is quickly dying off and unless they make an astonishing comeback, they will soon be extinct. Ecological .....

.... because of this. Pregnancy is affected by diabetes Mellitus. Many changes that take place during pregnancy make controlling blood sugar more difficult for a woman who has diabetes. Changes in the levels and types of hormones produced during pregnancy can cause insulin resistance, increasing the body’s requirements for insulin. Poorly controlled diabetes may endanger the fetus as well as the woman. With proper adjustments in insulin the risks lessen. Diabetes increases a pregnant woman’s risk of infection, early labor, and high blood pressure caused by pregnancy. The baby of a diab .....

.... The resulting oxide was supposed to possess marvelous powers, and it was thought that there resided within in the individualities of the various metals, that in it their various substances were incorporated. This black powder was mystically identified with the underworld form of the god Osiris, and consequently was credited with magical properties. Thus there grew up in Egypt the belief that magical powers existed in fluxes and alloys. Probably such a belief existed throughout Europe in connection with the bronze-working castes of its several races. Its was probably in the By .....

.... have to learn the basics of e-mail which, in turn, reveals even more problems with being computer illiterate. For an essay, the teacher requires that they go to the library to do research. The computer illiterate happily walks into the library to do their research. Imagine their surprise when they find out that the main tool of research is one of those darn computers. The poor illiterates stare blankly at a computer screen while the monotone library aide goes through a boring speech about how to use the computer. Because they are computer illiterate, the research takes twice as long tha .....

.... what is known as acid rain. The main reason that has prompted legislation of industrial emissions from governments is because of the negative effects they can have on the environment. Acid rain is harmful to the environment because of it's low pH. It can harm the biotic components of earth, and also the abiotic components. It's high acidity degrades soil to the point where it cannot support any type of plant life. Trees in forests are killed over long-term exposure. When these trees are killed, an imbalance in the hydrologic cycle can occur. Without living trees to consume the precipita .....