.... ground fire they'd set earlier. It gradually burned through bitterbrush and light woody debris, mimicking the natural understory fires of old and thus protecting a stand of mature ponderosas. The fire was moving ionals throughout the U.S. In other words, the present emerging technology is a lot more parochial (meaning practical) than political - a refreshing thought. "Honey, your fire has escaped.!" "There's no guarantee you'll not get a big rip," (see terminology sidebar, page 57) says a Forest Service fire officer on the eastern seaboard. "When you're messing with fire, there's always a chance one will escape," echoes his counterpart in California's Sierras. "The fuel ....

.... and so on. Identical siblings constitute a clone. The growth of a tumor in the body of an individual is, in effect, the formation of a clone of malignant cells. Humans have learned from nature and started their cloning saga also. In one method of artificial cloning used in plant breeding, cells are cut from a plant and placed in a flask with a nutrient medium. The cells grow and divide, forming embryonic tissues that are transferred to soil, where they produce complete plants. Grafting is another method of cloning used in Horticulture. Matching cuts are made in the stems of two plants, which are then fitted together so that their transport systems are in contact. The ....

.... these animals. He kept asking me questions about the whales and their habits. It was an interesting change of pace to be my Dad’s teacher. This was great because I actually knew something that my Dad did not know, which was very rare. Though that was great, it was not the best part of my adventure. The best part of my experience was in the water. We set out to sea around 5:00pm and returned at around 9:00pm. Those four hours were probably the best four hours of my adolescent life. When I was out on the kayak I saw so many killer whales it was unbelievable. We were in the midst of two whale pods numbering about 90 whales. I had heard that killer whales ....

.... of the same element have the same number of protons but they have different numbers of neutrons (The America Heritage Dictionary of the English Language, Third Edition, 1992). The isotopes of a given element have identical chemical properties but varying physical properties (The America Heritage Dictionary of the English Language, Third Edition, 1992). A radioisotope is a radioactive isotope (The America Heritage Dictionary of the English Language, Third Edition, 1992). A radioisotope is a naturally or artificially created isotope having an unstable nucleus that decays, letting off alpha, beta, gamma rays until stability is reached (The America Heritage Dictionary o ....

.... ovarian follicles which contain eggs. Frequent blood tests are taken to monitor hormone secretion from the ovary and pituitary gland. - When eggs are ripe, they are retrieved by transvaginal needle aspiration, guided by ultrasound. At the same time, semen samples from the husband (or donor) are obtained. The most active and healthy sperm are selected by forcing them to swim through a culture medium. - The egg and sperm are placed together in a suitable medium for fertilisation to occur in a culture dish. If fertilisation does not occur after 72 hours, the oocytes (incompletely developed eggs) and sperm are disposed of. The resulting embryos are observed for the n ....

.... engineering, respiratory and flow studies. (University of Miami) Biomedical engineering is concerned with the application of engineering and science methods to the analysis of biological and physiological problems, the delivery of health care, and/or industrial applications. (Drexel University) The biomedical engineer serves as the connection between traditional engineering subjects and living systems. He/she may work applying the patterns of living organisms to engineering design or engineering new approaches or products to improve human health and productivity. On the one hand, the biomedical engineer may use his/her knowledge of physiological systems to reverse engineer ....

.... the s and ozone layer. s are basically inactive in the troposphere(around the altitude of 50,000 feet) so it would gradually drift upward until they reached the mid-stratosphere.(about 100,000 feet) At this point s would be broken down by short-wavelength ultraviolet radiation from the sun. This radiation is the one which would not reach the lower atmosphere in large amounts because of the ozone layer. When these s do brake down, they released atomic chlorine which then would react with the ozone and convert it back into plain oxygen. The even worse part of all this is that these chlorine molecules do not become inactive after the first reaction with the ozone and wou ....

.... or weaker it became. He thought that these traits became hereditary. Later scientist disproved this theory when more was learned more about genes and how they work. 50 years later Darwin came up with a theory that most scientist believe it to this day. this is called the theory of evolution. His book was called “The Origin of Specie.” Alfred R. Wallace, came out with a theory that was almost identical to Darwin’s theory. Darwin’s theory was much more developed and better known. For example Darwin pointed out that farmers would take certain qualities from two different plants and mix them together and it would produce the desired plant. ....