... also had an extremely slow mailing service, that took weeks to meet it’s desired destination, because they had to walk on foot or on horse back. There were no cars, and there were no airplanes, only there own two legs, and a horses. Something needed to be done. It took way too long to get into contact with people, and it took the same amount of time to get a response. In 1886, a man by the name of Alexander Graham Bell developed an interesting object, that gave you the capability of talking live with one person, other then yourself. This object later became known as the well respected telephone. Although when Bell first invented the phone there were many kinks t ...

... energy. Polysaccharides play an important role serving as energy reserves also. It provides a quick-release energy source that keeps us going between meals. Small amounts of carbohydrates are also used for structural purposes and others are attached to outer surfaces of cell membranes to guide cellular interactions. For many cells, sugars are the most important source of energy. Lipids are important because they function as structural components of cell membranes, sources of insulation, and a mean of energy storage. The lipid molecules are most well known as forming basic structures of cell membranes and as energy storage molecules as well. In this group of ...

... germs spread and what we can do to prevent them. Long before humans discovered antibiotics, they existed in nature. So naturally, after penicillin was introduced, some germs were already naturally resistant to the drug. As we used more and more of the antibiotics, we incidentally caused drug-resistant germs to progress. So, even if you’ve never misused antibiotics, you could still become infected by bacterium most drugs won’t kill. For each drug, there are germs genetically programmed to survive- some w/ outer walls tough for antibiotic to cross, others with ways to dump the drugs back out before they can work, and yet others can inactivate the an ...

... of the universe to producing tomorrow's weather reports, and their use has in itself opened up new areas of conjecture. Database services and computer networks make available a great variety of information sources. The same advanced techniques also make possible invasions of privacy and of restricted information sources, but computer crime has become one of the many risks that society must face if it would enjoy the benefits of modern technology. Imagine a world without . That would mean no proper means of communicating, no Internet, no video games. Life would be extremely difficult. Adults would have to store all their office work paper and therefore take up ...

... of B.F. Skinner and his studies. A Study of B.F. Skinner's Behaviorism B.F. Skinner is an American psychologist who is best known for his research into the learning process and his idealist view of having a planned society. He was born in Susquehanna, Pennsylvania in 1904. He graduated from Hamilton College in 1926. After becoming interested in the works and studies of John B. Watson and Ivan P. Pavlov, he studied with animal learning and functions of the nervous system. He received his Ph.D. in behavioral psychology at Harvard in 1931. In 1936, he then worked as part of the faculty at the University of Minnesota. A few years later in 1939 to 1945, during World W ...

... an elliptical orbit at an average distance of 4.504 billion km (2.799 billion miles). Neptune consists largely of hydrogen and helium, and it has no apparent solid surface. The first two thirds of Neptune is composed of a mixture of molten rock, water, liquid ammonia and methane. The outer third is a mixture of heated gases comprised of hydrogen, helium, water and methane. The atmospheric composition is 85% Hydrogen, 13% Helium, and 2% methane. The planet's atmosphere, particularly the outer layers, contains substantial amounts of methane gas. Absorption of red light by the atmospheric methane is responsible for Neptune's deep blue color. Neptune is a dynamic ...

... anteaters certainly live up to their name; some grow to be over six feet in length, with a tail of about three feet (Encarta ‘98)! Anteaters' tongues are two feet long, and the animals can move them in and out of their mouths up to 150 times per minute (Schupska 1). The giant anteaters lives 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 ...

... the many animals that are on the list are the Black Rhino, Leatherback Turtle, and the Wild Tiger. First, the Black Rhino is on the list for mainly one reason and that is because of poaching or illegal hunting. “The Black Rhino also has a long gestation period of 15 months with an interbirth interval of a single calf every 2.5 to 4 years, making it a slow process for rhinos to be introduced back into the world by birth” (International Rhino Foundation 3). “The Black Rhino is illegally hunted for its ivory horn that ranges between one foot to one foot eight inches long” (Speart 26). The animal is slaughtered for its horn while its carcass is left for the vultur ...

... called the zona pellucida. They dissolve the zona pellucida with a solution and take the two to eight cells and separate them into other petri dishes. Am artificially produced zona pellucida is added so embryonic development can continue. Now you have exact copies of the same genetic makeup in two to eight separate petri dishes. Even though this process sounds simple enough it has never fully worked because of abnormalities that occur like if the embryo is developed by two sperm cells the chromosome count is wrong. Another is as the cells duplicate they usually do not make it passed the 32-cell stage or 64 because of abnormalities in the environment or just because ...

... These producers see twinning as a way to dramatically increase their yield per calving season. Producers will increase their income due to more weight per year per cow. It is necessary ;however, that the producer be well educated on how to handle twinning, in order for it to be successful for them. Many agencies see twinning as an economic move upward. The American Breeder Service has made efforts to produce semen as well as embryos with high predicted breeding values available to producers. They have been recorded based on twinning probabilities and ovulation rates. A large amount of work on twinning has also been done by the Meat and Animal Research Cen ...