AS Biology Coursework

AS Biology Coursework AS Biology Coursework Below is a short excerpt from an AS biology coursework written on the topic of biological species. The topic is rather broad and serves as an introduction to a narrowed research. Reading the following biology coursework sample, pay special attention to the sentence structure, use of terms, and format. writers are online 24/7 to help you with your coursework writing assignments. Moreover, our free writing blog is full of excellent sample essays and papers. If you need an expertmotivation coursework just follow this link: Species represents a biological balance, and an individual is also a balance or system in equilibrium. Within a species itself, individuals are similar but not identical. The differences are called variations, and when numbers of individuals exhibit the same variation they form a variety. A variety is distinguished from a race because the latter has greater constancy, whereas the former fluctuates in general and tends to disappear, whilst individuals showing such variation engender a line which continues over a larger or smaller number of generations and becomes approximated to the specific type. This is what Galton in 1889 termed "filial regression." Specific characters do exist representing a middle term, and on one side or the other of this average, we find variations which arithmetically follow Gauss's Law, or the Law of Mean Errors of the Calculus of Probabilities. This can be confirmed by taking the more distinctive characters. Thus height, weight, colour of eyes, basic intensity of metabolism, pulse, blood pressure, and so on. In species other than the human we can take for instance the weight of certain seeds, the height of a plant, the number of vertebrae in certain fish, and so forth. The graph showing such variations quantitatively is called a "Galton's curve," and demonstrates that individuals showing typical average characters of the species are the most numerous, whilst divergencies above and below such average diminish in proportion to the degree of variation of the character from the average type. Thus, for instance, the height of individuals: there is an average height, a distinctive feature for each species and t his will be the height of the majority of specimens. There are taller individuals and shorter ones, and the numbers of these outsiders decreases as their height differs more and more from the standard. There is furthermore, as we have repeatedly mentioned, a tendency to revert to the specific standard. Short parents and tall usually have offspring whose height is different from their own and more or less in accordance with the variance of the parents from the average standard. In all of these cases the tendency for "reversion to type," to "balance" in the species, is evident. There may well exist primitive species with a certain degree of stability, fairly constant in form, such as those distinguished by Jordan in 1848 as between the plants and the midpoint of the limits of a Linnaean species. Thus, for instance, in Viola tricolor, Jordan distinguished several dozen various species, independent and stable as regards the transmission of their characters through the seeds: with large, small and middling blossoms respectively identifiable through particular features of the component parts of the blossoms, seeds, and so on. AS Biology Coursework Writing Service AS biology coursework can be a pleasure for some students while it is a real nightmare for the rest. As a result, thousands of students turn to professional coursework writing service offered at our site to get help with their challenging assignments. Our biology writers are able to write customized (written from scratch) coursework on a wide array of topics. We guarantee no plagiarism and no copy/paste! Only original writing! Read also: Expository Essay Essay Writing Tips English Essay Writing Outline Conclusion Writing Cold War History Essay

Winslow Homer essays

Winslow Homer essays Winslow Homer is regarded by many as one of North America's best painters. His work was enjoyed in the late 1800's and is still popular today. Winslow's use of colour, perspective, and subject matter is still intriguing. Winslow Homer was born in Boston, Massachusetts on February 24, 1836 and was the first of four children in his family. In 1842, his family moved to Cambridge, Massachusetts, where Winslow became an apprentice to a lithographer, J.H. Bufford. After he completed his apprenticeship in 1854, he left home to become a free lance illustrator. In 1859, Homer moved to New York and became a student at the National Academy of Design in New York City. There he studied painting with Fredric Rondel. Later he covered Abraham Lincoln's inauguration, and visited the Potomac outside of Washington in October, until 1862. In 1862, Winslow Homer attended a campaign in Virginia, were he painted his first oil paintings. These would be the first of many that would make him famous. For two years, he made trips to the Civil War front where he produced paintings and illustrations. These paintings were of soldiers, horses, and prisoners. Instead of painting scenes of fighting during the war, he painted the casual times, which was unique to the other paintings of the painters at that time. After the war paintings, he went to France to paint the countryside, and to Paris, until 1867, when he came back with prisoners from the front. From 1868 to 1870, he visited the White Mountains in New Hampshire and the Adirondack Mountains painting wilderness scenes. Most of these paintings included wildlife, hunters, and hunts. Winslow spent most of his time doing these types of paintings. In 1872, he moved to Tenth Street Studios in New York to paint privately. That following summer in Gloucester, Massachusetts he did his first water colour series and engravings of the seaside. Two years later, he did his last illustrations for Harper's Week...

Explain the issues in natural disasters and humanitarian emergencies Coursework

Explain the issues in natural disasters and humanitarian emergencies that China faces and propose solutions that you feel may be - Coursework Example Again, Chinese regulations require their buildings to be earthquake-resistant. However, the collapses of schools, hospitals, and factories during natural disasters raise questions about the country’s enforcement of building codes (Woodrow Wilson International Center for Scholars, n.d.). The Ministry of Science and Technology of China has established a few monitoring and early warning systems around Mount Ailao in southwest China’s Yunnan Province, the southeast China’s Fujian Province and the reservoir region of the Three Gorges Project on the Yangtze River. However, these structural systems are not sufficient given the vast topography of the country (Xinhua, 2011). In order to address these issues, the government of China needs to invest considerably towards the expansion of the public health system to provide shelter, potable water, food, medical care and sanitation. Secondly, the country can work in collaboration with international agencies to develop and impl ement frameworks for disaster response, risk assessment, evacuation measures and public education. Finally, the government also needs to ensure that building codes and policies are implemented within their country.