PAPER Topics

... kept in these bowls for a few weeks before any of the experiments started. Only the most healthy anemones were used in the experiment. To free the anemones, Francis hit the bowl against a solid surface. To determine the sex of the anemones, they were severed and inspected for sex organs. When their sex organs are fully grown the female’s are brownish-pink and they male’s are yellowish-white. The anemones that contain one or more sex organs including oocytes or spermatocytes were recorded as having developed sex organs. The anemones were then placed in a drying oven for approximately 18 to 24 hours, so they could be dried to a constant weight. The anemones living in clusters isolat ...

... oil, gasoline, and natural gas. Sugar, starch, and paper are compounds of carbon with hydrogen and oxygen. Proteins such as hair, meat, and silk contain these and other elements such as nitrogen, phosphorus, and sulfur. More than six and a half million compounds of the element carbon, many times more then those of any other element, are known, and more are discovered and synthesized each week. Hundreds of carbon compounds are commercially important but the element itself in the forms of diamond, graphite, charcoal, and carbon black is also used in a variety of manufactured products. Besides the wide occurrence of carbon in compounds, two forms of the element--diamond and grap ...

... type of food in the stomach also affect the absorption rate. Drinking when the stomach is filled is less intoxicating than when it is empty; the foods in the stomach, which contain fat and protein, delay alcohol absorption. Body weight is also a factor; the heavier the person, the slower the absorption of alcohol. After alcohol passes through the stomach, it is rapidly absorbed through the walls of the intestines into the bloodstream and carried to the various organ systems of the body, where it is metabolized. Although small amounts of alcohol are processed by the kidneys and secreted in the urine, and other small amounts are processed through the lungs and exhaled in the breath, most o ...

... by pesticides than adults because, they are strange eaters, they breath at a higher rate, and tend to spend more time on the ground were chemicals may settle and then enter a child’s body through breathing, orally, by touching something with a residue and then putting their fingers in their mouth, and through a child’s skin. Pesticides will drastically damage the future health of our children if people don’t act now. CHILDREN’S HEALTH IS AT RISK THROUGH THE FOOD THEY EAT Every year, tens of millions of pounds of carcinogenic, neurotoxic, immunotoxic, and otherwise hazardous pesticides are thrown onto foods that infants and children eat greater quantities than the average adult. Th ...

... will not separate no matter how long the solution is allowed to stand under constant conditions. In a solution, one substance is usually considered to be dissolved, or broken down in another. The substance that is dissolved is called the solute. The substance that does the dissolving is the solvent. Not every substance dissolves in every other substances. A substance that dissolves in another substance is called soluble. Soluble means capable of being dissolved. A substance that does not dissolve is called insoluble. TYPES OF SOLUTION There are several different possible combinations of solute and solvent according to the physical state. It is useful, however, to categorize so ...

... and water; making it rot and rust resistant. Compared to steel and concrete, 49's psi (pressure per square inch) is 525,000, steel's is 36,000, and concrete's is 3,000 (New Necessities). The blast suppression, or body armor, is strong enough to endure machine gun fire (up to .3 caliber), land mines, terroristic weapons, and a chainsaw (New Necessities). It does not melt, can stand temperatures up to 7,000 degrees Fahrenheit, absorbing vibration and energy, and will not stretch. Bullriders, military personnel in war, peace officers, racecar drivers, and many other people use this excellent invention (DuPont). DuPont makes flameproof suits out of 49 for fire fighters and high-speed ...

... or cow sharks, comprise of two families. Recognized by their six or seven pairs of gill slits, there sharks can often be found in deep water. The frilled shark (CHLAMYDISELACHUS ANGUINEUS) who's appearance is quite unmistakable due to it's "eel" like appearance, is perhaps one the strangest shark that exist today. FOSSIL RECORD: Shark fossil record is fargmentery at best. Most fossils found so far consist of nothing but teeth in some cases a few vertebra have been found. This is rare due to the fact that sharks have bones instead, they have cartiladge which countrary common belief is rather solid. In the rarest of cases complete fossil have been discovered. Scientific dat ...

... and studies, there is now physical proof that human beings may have evolved from ape-like creatures. Even with this, there are still disputes in the paleoanthropological field of whether or not this is true. Still, many choose to believe their religious creation stories where a God created humans. Whether it is Johanson's idea on human evolution or Leakey's or even the Roman Catholic's creation story, all are an individual own interpretation and neither wrong nor right. A paleanthropologist by the name of Donald Johanson is one of the many who have a very different view on the origin of humans. In 1974, he discovered forty percent of an individual dating back to 3.5 million years ago. The ...

... signal to the second cell, and so on around the body. After a nerve impulse has been sent across a synapse, special enzymes clear away the neurotransmitter so that another impulse may be sent. The first antidepressants, monoamine oxidase (MAO) inhibitors, were discovered accidentally during the 1960's by researchers who were trying to develop new drugs to treat tuberculosis. MAO inhibitors didn't help TB, but they elevated mood. Since then, many other types of antidepressants have been developed. They are all about equally effective. But the newer drugs are safer and for most people, have fewer side effects. In order of their development, here are today's antidepressants: MAO inhibito ...

... amount. This makes water much better for regulating the temperatures of animals and the environment. Water also has a very high heat of vaporization. Converting one gram of cold water into ice requires 80 Calories of energy. Converting the same amount of very hot water into steam requires 540. The high amounts of energy required to change water from its liquid state make water tend to stay a fluid. The process of freezing water involves slowing down the activity of the water molecules until they contract and enter into a solid state. Once the ice is cooled down to 4 degrees or less, the hydrogen bonds no longer contract, but they become rigid and open, and the ice becomes less den ...