.... Explain one method by which biologists can study population densities without obtaining such data. Scientist barely ever count the amount of individuals in a certain area because it would take too much time. Instead of actually counting the number of individuals in an area they would compare it with other areas where they know the population of individuals. In this way they can roughly estimate the number of individuals in a certain area. 4. What might happen to a rabbit population in an area where there are no predators? If there were a few rabbits in an area with no .....

.... children born to women who drank alcohol excessively during pregnancy appear to be at increased risk for attention deficit disorders with hyperactivity, fine-motor impairment, and clumsiness as well as more subtle delays in motor performance and speech disorders. [4] These findings have been referred to as fetal alcohol effects (FAE). As recently described, FAS and FAE produce profound cognitive, behavioral, and psychosocial problems that persist to date of follow-up of those affected. In the most comprehensive and far-reaching study to date, Streissguth et al [5] .....

.... alphabetical order by whatever- name, GP, date of birth e.t.c. However, in an office cabinet it really would not be easy at all to put and keep the files in some sort of alphabetical sequence. Currently the database is pen-and-paper based, which may be cost effective but is very time-consuming when compared to a computer-based database. Say you have a paper-based database. If one of your clients move house or get married, you would have to create a whole new record because of the altered information. And say it was a family who moved residence, and then after you made the new .....

.... disturbances in sleep and appetite, psycomoter retardation, loss of energy, feelings of worthlessness, guilt, difficulty thinking, indecision, and recurrent thoughts of death and suicide. The manic episodes are characterized by elevated or irritable mood, increased energy, decreased need for sleep, poor judgment and insight, and often reckless or irresponsible behavior. Bipolar affective disorder affects approximately one percent of the population (approximately three million people) in the United States. It is presented by both males and females. Bipolar disor .....

.... tumours can invade and destroy. One of the reasons that cancer needs to be caught early is because it will spread. Cancerous cells lack the sticky coating that causes normal healthy cells to stay together because cancerous cells lack it they can break off and implant somewhere else in the body. The cancerous cells that break off from the primary tumour are usually carried through the blood. What causes cancer cells to be abnormal? They create extra chromosomes and more DNA then normal cells do. Lung Cancer What usually happens with lung cancer is that the cilia in .....

.... from water come to react with the metal in the negative electrode to form MH. On the other hand, the hydroxyl ion ( from water) reacts with Ni(OH)2 at the positive electrode to form NiOOH. Ni now change from +2 to +3. Ni(OH)2 +OH = NiOOH + H2O + e From equation (1) and (2) there is no net change in electrolyte quantity or concentration over the charge and discharge cycle. We can see that it is different from other alkaline electrode such as NiCd which water is produced at both electrode during charge and used up during discharge. In the NiMH battery, the constant .....

.... for the project. There also have been technological advances and discoveries that have helped to speed up the project. This automation may help to reduce the cost and help the project to meet its objectives ahead of schedule. The project was estimated to have detailed maps of all of the chromosomes and know the location of most of the human Genes by 1996. Researchers have successfully located the gene and DNA sequence for Huntington’s Disease on Chromosome 4 and have created a genetic test to determine if a person carries this gene. "The child of a person with Huntington's h .....

.... the experiment with the egg and the bottle is that the egg will not be sucked in the bottle. PROCEDURE: For the first experiment the procedure is: 1) Heat an ordinary pop can on a hot plate. 2) After about fifteen minutes take the can off the hot plate and put it upside-down in a pan of cold water. 3) Record my observations on a piece of paper. 4) Write my conclusions in my science fair logbook. For the second experiment my procedure is: 1) Get an empty gallon milk jug at room temperature. 2) Heat to water to just before the boiling point on a hot plate .....