.... thinking is conducted with flowing thoughts and ideas. This essay titled "Natural Selection and the Human Brain: Darwin vs. Wallace" takes a look directly at two hard fought battles between evolutionists and creationists. Using sexual selection and the origins of human intellect as his proponents, Gould argues his opinion in the favor of evolutionary thought. In this essay titled "Natural Selection and The Human Brain: Darwin vs. Wallace," Gould tells about the contest between Darwin and another prominent scientist named Alfred Wallace over two importa .....

.... surprising that it has not been until recently that it was discovered in the body. The compound is quickly converted into nitrates and nitrites by oxygen and water. Yet even its short-lived life, it has found many functions within the body. Nitric oxide enables white blood cells to kill tumor cells and bacteria, and it allows neurotransmitters to dilate blood vessels. It also serves as a messenger for neurons, like a neurotransmitter. The compound is also accountable for penile erections. Further experiments may lead to its use in memory research and for t .....

.... genetic engineering to produce, for example: - improve vaccines against animal diseases such as footrot and pig scours; - pure human products such as insulin, and human growth hormone in commercial quantities; - existing antibiotics by more economical methods; - new kinds of antibiotics not otherwise available; - plants with resistance to some pesticides, insects and diseases; - plants with improved nutritional qualities to enhance livestock productivity. Methods: - Manipulation of the Gene pool, which is related to Hybridization which is the breeding of speci .....

.... he called the maser (microwave amplification by stimulated emission of radiation). The maser amplifies the number of photons that cause microwaves. After the invention of the maser many scientists became interested in the idea of building an optical maser, which soon received the name laser (light amplification by stimulated emission of radiation). Townes paired with Arthur Schawlow, two Soviets, Nikolai Basov and Aleksander Prokhorov, as well as Gordon Gould were all interested in developing a light-amplifying device. All of them knew that there were three esse .....

.... of sodium and chloride in their sweat making it vey salty . At the University of North Carolina researchers found that salt imbalance caues thick mucus to accumulate in the patients lungd. High level of salt in lung cells draw water out of the mucus causing it to thicken.The level of salt in a cell is determained by the movement of ions across the cell membrane.Ions are carried across call memebranes by protein channels embedded in the cell membrane. Since the stucture and functions of proteins are determained by genes problems with ion transport can be as .....

.... it tends to reoccur. Each reoccurrence tends to last longer and is more debilitating than the one before. Chronic depression is a low grade, long-term depression that can go on for years. Some people have had it most of their lives. Long term, low-grade depression is also known as dysthymia. Dys, meaning disorder, and thymia meaning mood. Dysthmia is then a disorder of ones mood. The last type is manic depression. The lows of this depression can alter with days or weeks of maniaextreme feelings, unreasonable thoughts, and inappropriate, sometime .....

.... The sun's rays go through the glass, and heat up the air inside the building, and they have a hard time getting out. These rays get trapped inside the building, and continually heat the air inside, and even through the night the rays stay in and heat the air. The greenhouse is also called a "HOT HOUSE" because it gets so hot. The greenhouse effect is caused by gases such as carbon monoxide, carbon dioxide, and nitrogen escaping into the atmosphere. These gases get trapped in the ozone layer and do not let the suns rays escape very easily. This causes th .....

.... normal criminals. They were finger printed and booked, after that they were told to put on prison uniforms and then they were thrown into the slammer (in this case a simulated cellblock in the basement was used). All of the participants in this experiment at first were thought to be similar in behavior but after one week, all of that changed. The prisoners became "passive, dependent, and helpless." The guards on the other hand were the exact opposite. They became "aggressive and abusive within the prison, insulting and bullying the prisoners." After the e .....