... of movement lead to many adaptations within the Hominids skeleton. There are notable changes in the spinal cord, pelvis bone and legs. The chimpanzee does have the ability to walk upright and does, but it spends most of the time walking on four limbs. It uses it’s arms as it’s front legs and walks on it’s knuckles. Our brain capacity is about twice as large as that of the chimp. Humans have a brain capacity of 1300 to 1500 cc, while the chimps are about 600 - 800 cc. It is though by scientists that our brain size grew over time as were evolved into making complex tools and we became increasingly sophisti ...

... making it disappear. There are many factors that affect how quickly the ozone depletes. The main problem with the decaying ozone layer consists of people being careless. Many times, the chemicals released into the air by people drift into the ozone and form harmful chemical bonds with ozone molecules. One example would be chlorofluorocarbons or CFC's. CFC's were commonly found in spray cans during the early 1970's but were invented in the 1920's. They contain chlorine, fluorine, and carbon atoms which all form bonds with the rare ozone molecules. A few more products with CFC's are coolants for refrigerat ...

... fear by misinterpretation of facts, they promote their hidden agendas in the halls of the United States congress. Genetic engineering is a safe and powerful tool that will yield unprecedented results, specifically in the field of medicine. It will usher in a world where gene defects, bacterial disease, and even aging are a thing of the past. By understanding genetic engineering and its history, discovering its possibilities, and answering the moral and safety questions it brings forth, the blanket of fear covering this remarkable technical miracle can be lifted. The first step to understanding genetic engineering ...

... out at the cathode; oxygen is being oxidized and collects at the anode. (This sounds strange, but if you remember that electrolysis is a reversal of burning -- or oxidizing -- hydrogen, it will make sense.) Electrochemistry is used in the synthesis of organic molecules. Often electrochemical reactions can proceed under milder conditions (more safely), with less hazardous waste (better for the environment), and in higher yields (better for your wallet) than a similar process using chemical reagents. Some synthetic processes can only be done using electrochemical methods, and electrochemical methods are used ...

... were to suddenly change due to a global warming trend, how would this affect the plant’s growth and ability to photosynthesize? These are the questions that lie at the basis of the following experiment. Objective: To determine how the presence or absence of water in the environment affects the surface area to volume ratios in plants. It is observed that plants in moist environments have more lush, larger foliage, while plants inhabiting desert conditions are generally smaller and have less photosynthetic surface areas. Hypothesis: Alternative Hypothesis: states the hypothesis being tested in this experi ...

... below. Product Weight Before Weight After Mass of Test tube + KClO4 41.5g 39.8g Mass of Test tube 37.5g 37.5 Mass of KClO4 4.0g 2.3g 2. Set up the apparatus shown below. 3. Gently heat the test tube containing the potassium perchlorate. Gas should begin to collect in the collection bottle. Record all observation. 4. Once the reaction is complete, no more gas give off, allow the test tube to cool. While the test tube is cooling test the gas in the collection bottle with glowing splint. Caution: Do not leave the rubber tubing down in the water trough during cooling or you will experience back-up. 5. After the ...

... propagation of alleles or chance. Genetic drift depends greatly on the size of the gene pool. If the gene pool is large, the better it will represent the gene pool of the previous generation. If it is small, its gene pool may not be accurately represented in the next generation due to sampling error. Genetic drift usually occurs in small populations that contain less than 100 individuals, but in large populations drift may have no significant effect on the population. Another mechanism is gene flow which is when a population may gain or lose alleles by the migration of fertile individuals between populations. This m ...

... at, say, an apple, what you really see are the waves of light reflected from it. Your two eyes each see a slightly different view of the apple. These different views tell you about the apple's depth -its form and where it sits in relation to other objects. Your brain processes this information so that you see the apple, and the rest of the world, in 3-D. You can look around objects, too -if the apple is blocking the view of an orange behind it, you can just move your head to one side. The apple seems to "move" out of the way so you can see the orange or even the back of the apple. If that seems a bit obvious, just ...

... painkiller effect as morphine but is only one-sixth to one-tenth as strong. Codeine occurs as a colorless or white crystals or as a white, crystalline powder and is slightly soluble in water and freely soluble in alcohol. The phosphate and sulfate salts of codeine occur as white, needle- shaped crystals or white, crystalline powders. Why is it used? Codeine is most useful in the relief of mild to moderate pain. It is also used as a cough remedy because it suppresses the part of the brain that triggers coughing, and as an anti-diarrheal drug, because it slows down muscle contractions in the intestinal wall. There ...

... and in some weathered volcanic rock. come in many different shapes and the most common of the shapes is spherical or disk shaped. are the most varied-shaped rocks of the sedimentary world. The way come to be is the mineral matter concentrates around the nucleus of a host rock. The nucleus is often organic such as a tooth or leaf or shell or fossil. As the mineral matter concentrates around the nucleus it forms harder zones known as nodules. are very odd in the sense that they very in size, shape, color and hardness. Often are mistaken for bones, fossils, meteorites and other odd objects. They can be so ...