.... this you can conclude that the difference between plants and animals is vague, especially among the more primitive forms. Plant organs are organized into three kinds of organs: roots, stems, and leaves. Roots anchor the plant into the ground and they also gather minerals and water from the ground. Roots usually grow under ground and downward. Roots have tiny “hairs� which increase the surface of the roots, which results in more gathering of minerals and water. Stems are usually above ground, grow upward, and usually have leaves. Plants that do not have leaves generally use the stem as the photosynthetic surface, like cacti. Leaves are st .....

.... of some word or words to described it. They came up with Light Amplification by Stimulated Emission of Radiation. Using the first letter of each main word they named it laser. The laser had everyone excited. The laser was put through many tests and experiments to see what it could do to help modern civilization. At first there weren't many uses for the laser. Then in the 1970's it became very important. It was finally being used in everyday life. As years went on the uses grew in number. Today lasers were being used in a variety of ways. This includes entertainment, military, communication, businesses, measurement, cutting, and more. .....

.... living as a tutor and governess for a family in Poland. This was a time when Russia dominated Poland and girls could not attend universities in Poland. Marie’s older sister, Bronya, had already left Poland to study medicine at a university in Paris. Marie sent a portion of her earnings as tutor and governess to Paris to help pay for her older sister’s medical studies. In 1891, when Marie was twenty- four years old, she was invited to live with Bronya upon her completion of medical school. This enabled Marie to enroll at the University of Paris and begin her own dream of becoming a university student. Marie studied mathematics, physics, and c .....

.... fear the unknown, but it is hard to figure out why they can't take a step back and realize that cloning is basically an extension of current and accepted prac tices. Also, the general public's fear shows up in the nation's congress and even the president. Who knows the real opinions of the individuals in congress, but as long as the general public is against cloning, politicians will be too, so they can gain support from voters. Even with all these setbacks, there are still major uses for cloning research. Uses that will never present themselves unless people put down their moral, ethical, and religious shields and allow the research to .....

.... purplish flesh. Little did I realize what it takes to recover. My father had orthoscopic surgery twice, and both times he was walking within a day and cycling within a week. I assumed my recovery time would be similar to his. Never in my life have I been so wrong. Due to the nature of the injury, the doctor elected to stitch my cartilage back together. Because of the intricacy of the operation, I was restricted to non-weight bearing activities for three weeks. If I wished to return to wrestling, the doctor stated that I would have to demonstrate a muscle strength in my injured knee equal to ninety percent of my good one. When informed of this .....

.... breakdown to take place. In the stomach lining, the pyloric glands secrete mucus that forms a mucus lining. Also in the stomach lining, are epithelial cells and the gastric glands. The gastric glands secrete gastric juices. Hydrochloric acid is released which deactivates the salivary amylase, in turn stopping the chemical breakdown of starch into maltose. Pepsinogen, which is an inactive enzyme, will change to pepsin, an active enzyme, when mixed with hydrochloric acid. Pepsin breaks down proteins, forming chains of amino acids called polypeptides. Chyme, a mixture of churned food, mucus, and digestive enzymes, is formed and will pass through .....

.... life on mars. Lowell observatory was the first observatory in Arizona. It is a great family attraction with its location being in the popular Tourist City of Flagstaff; the observatory looks over the city. You are guided through a tour and experiments, and also are allowed to use the telescopes they have located on Mars Hill. There are a total of nine telescopes, eight which are at the observatory, of these many of them are historic, such as the 24" Clark Refractor that is 102 years old. The Pluto telescope dome and John Vickers McAllister telescope dome, which is 16" long, are also telescopes you would find at Lowell Observatory .....

.... the expansion of the universe, and the 360degree view of the universe (this because the explosion would have sent mass outward in every direction), but I wouldn’t think of it as the origin of the universe. I mean, in my mind, something had to be there to cause this super mass. Was the universe contracting until it formed this huge mass? I believe that we may never know how the universe came about, rather have some idea as to what came directly before it’s current state as well as before that and so on. We could come up with ideas until we die, and someone would just continue in our footsteps. I do have one idea as to how this super mass which is .....

.... Its way of amalgamating with gold is made use of the recovery of gold from its ores. is a bad conductor of heat and a okay conductor of electricity. The most important salts are mercuric chloride HgC12 which is a corrosive and violent poison. Mercurous chloride Hg2Cl2 which used to be used in medicine. fulminate Hg(ONC)2 used as a detonator in explosives and mercuric sulfide HgS used as a high-grade paint pigment. Organic compounds are important and dangerous. Methyl is a lethal pollutant found in rivers and lakes. is a virulent poison and is readily absorbed through the respiratory tract, the gastrointestinal tract, or through unbr .....

.... senile plaques. In a medical journal article published in 1905, Alzheimer speculated that the nerve tangles and plaques were responsible for the women’s dementia. Alzheimer’s disease is a disorder marked by a gradual decline in brain function that gets worse with time. It used to be assumed that this change was a normal part of aging that we called senility. Some people develop this condition when they are as young as 40 years of age. However, the disease is most common in persons over the age of 65. It is estimated that approximately 10 percent of persons over 65 years of age may have Alzheimer’s disease and that in persons over the .....