The Desert Ecosystems Complex Interrelationships

An ecosystem refers to different sets of interrelationships among living organisms, human beings and to the way they interact with their environment. The paper will focus on complex interrelationships of a desert ecosystem. Deserts are located near two tropics: the Tropics of Cancer and Capricorn; these two latitudes describe the zones where the sun is about ninety percent at noon.Advertising We will write a custom essay sample on The Desert Ecosystem’s Complex Interrelationships specifically for you for only $16.05 $11/page Learn More Deserts are divided into categories some of which include hot and cold deserts but they tend to have similar characteristics. An example of a cold desert is the Antarctica desert that is among the world’s largest deserts (Tewari, 1994). A desert’s is divided into abiotic and biotic components by structure; this in lay terms refers to non-living and living components of the ecosystem. Some of the abioti c components include soil. The main type of soil found in the desert is sandy soil characterized by alkaline PH, such soils have fewer organic matter and low water holding capacity hence referred to as poor soils. Water is another abiotic component whereby deserts are characterized by little or no water. Temperature as an abiotic component tends to be high during the day and relatively low at night. Wind and climate are also abiotic components. Biotic components of a desert ecosystem consist of plants and animals, whereby these organisms have the ability to sustain extreme temperatures. They also tend to have low production levels and lack diversity because of nutrient inadequacy in this ecosystem. Desert functionality calls for different cycles, for example, the carbon cycle takes a continuous form. The cycle capitalizes on activities of biotic components, as plants take carbon dioxide, water and light in the process of trying to make food and compounds full of carbon. When these p lants wither or die, they rot hence giving back carbon elements that had been taken from the soil earlier. Later on young sprouting plants take in these elements. Animals play a vital role in ensuring the success of the carbon cycle, during respiration they do breathe in oxygen and give out carbon dioxide. When these animals die, they decompose giving back nutrients to the soil, and this ensures continuity of the cycle. Another cycle in the desert ecosystem is the nitrogen cycle; it refers to how nitrogen is consumed and replaced back to the ecosystem. In a desert ecosystem, the cycle begins with desert plants taking up nitrogen, animals then consume these plants rich in nitrogen as food, the animals are consumed by other animals (carnivores).When this happens nitrogen that was taken from the plants is transferred to the carnivores. In case of death or excretion their remains decompose giving back nitrogen to the soil, soil organisms then assimilate it making it available for the us e by plants.Advertising Looking for essay on environmental studies? Let's see if we can help you! Get your first paper with 15% OFF Learn More Functionality of the desert ecosystem is normally disturbed by certain causes some of which include natural causes. Such natural occurrences as earthquakes, earth tremors and landslides may lead to alteration of the normal functionality of the ecosystem. This may lead to the destruction of the soil structure and general structure of the desert. It may also interfere with the land and the normal systems like gaseous exchange and production levels in the desert. Anthropogenic disturbances may also interfere with the desert ecosystem; some of these include mining activities, infrastructure development activities, air pollution, overgrazing and military training activities. High occurrence of these anthropogenic activities leads to the destruction of vegetation in the desert, unstable soils in terms of structure and increased soil e rosion. Ecosystems recover from initial disturbances through resilience and the theory of secondary succession. Resilience refers to the ability of an environment to maintain its original state, activities and functions despite stress. It is a combination of methods helping to increase the system’s productivity by providing the resources for higher production. Maintenance of local characteristics of the ecosystem helps it to recover; these characteristics will help decrease soil erosion, maintain soil structure and increase diversity. Secondary succession theory can also facilitate this recovery strategy using the above quoted methods. Reference Tewari, D. N. (1994). Desert ecosystem. Dehradun, India: International Book Distributors. This essay on The Desert Ecosystem’s Complex Interrelationships was written and submitted by user Jay Cooley to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Rockeffeller essays

Rockeffeller essays John D. Rockefeller and Andrew Carnegie were two great pioneers in American history. Rockefeller founded the Standard Oil Company and Andrew Carnegie founded the steel company. They did many great things in this country to help boost up industrial growth. Without both of their brains America would never have been the way it is now. There are many reasons why Andrew Carnegie and John D. Rockefeller were great pioneers of this country. One way they were good pioneers was because in the steel industry, Carnegie made up a system that was known as vertical integration. Carnegie bought his own iron and coalmines because using single companies cost too much money. By him doing that he was able to undersell his competitors. Carnegie and Rockefellers business went from top to bottom. They follow one product through all its stages. Rockefeller controlled the oil when it was drilled, then he maintained the refining process, which he turned into gasoline. Even though these two different methods of controlling their businesses they were still very successful. Andrew and Rockefeller both exercised their genius brains in making ways to defeat their competition. Although they were tough and hardheaded in business, he was not a monopolist. John D. Rockefeller came to take over the whole oil industry. He was a great man because he tried to be the best there can be in controlling something major like the Oil Company and also he showed very little mercy. He helped America by having products that were at very cheap price. Rockefeller believed in ruthless business, Carnegie did later too. After both their companies were successful industries. Even though Carnegie and Rockefeller treated their workers with cruel and harsh manners, they still did the best for them and their lives. They would encourage their workers to have a competition between one another so they can do a better job. By doing that their comp ...

Do men or women have more uncomitted, heterosexual sexual intercourse Research Proposal

Do men or women have more uncomitted, heterosexual sexual intercourse - Research Proposal Example Social learning theory explains the double standard on uncommitted sexual intercourse on the basis of the cultural norm that punished or isolated women for behaving in a sexually permissive manner while men gain admiration and popularity for similar behaviors. On the basis of sexual learning theory, the pattern of sexual behavior is explained by sexual script theory. A 1982 research points out that women were more probable to label sexual behavior of other women as immoral to suggest that women support the double standard that they should have less sex or no sex in uncommitted relationships (Milhausen, R.R. & Herold, E.S. 1999 pp.361-368). Uncommitted sexual intercourse is a topic of interest in recent times due to the evolution of sex differences and their relationship to sexual attraction. A research led by Michael Bailey found that men in the past enhanced their mating opportunities by indulging in uncommitted, casual sexual encounters. With respect to this supposition, men have more frequent yearning for sex with new partners when compared to women. Further, men are more willing than women to indulge in impersonal and casual sex. On the basis of this argument, it is considered that women commit more resources for reproduction and they gain very less advantage from casual frequent sexual action unless it is an extra effort taken for occasional copulation with a superior male to improve reproductive success. The researcher points out that heterosexual man has a high desire for sexual activity with a number of sexual partners. While comparing the frequent sexual activity of women, Bailey and colleagues consider the f requent sexual activity of heterosexual women as accommodating to the demands of male partners rather than the women’s true yearning for frequent intercourse. Another explanation indicates that women generally are socialized in a way that they are assertive in prompting sexual

Memo Assignment Example | Topics and Well Written Essays - 1250 words

Memo - Assignment Example nts require skills that enhance their capacity to understand, analyze data, solve problems and communicate their ideas to others, which is necessary for collaboration in Park University. According to Hanson-Smith, and Rilling, such skills are fundamental to the success of the contemporary knowledge society (363). Nevertheless, most of the students do not possess these skills and the educators are not informed regarding the necessary steps to take to improve online learning. The students’ needs that should be addressed include; Effective communication through the utilization of the various tools available such as audio, visual, computer graphics and various design software. The students should also be exposed to the use of emerging communication environments such as the World Wide Web, electronic mail and social networking sites among other interactive strategies. Analyzing and interpreting information obtained from various sources including the World Wide Web. Much of the information obtained from websites is usually raw and requires skills for selection of only what is useful for the students and discarding the irrelevant data. They need skills to gather the right information, make comparisons, evaluate and interpret information to make it useful in their learning endeavors. Computational modeling is a significant skill that allows students to cope with the difficult tasks in various subjects. They need to understand a range of systems for data representation, which include; mathematical models and simulations as well as various computer programs that can be used for problem solving. The assumptions that form the basis of the models as well as their effectiveness and limitations need to be known by the students to enhance their problem solving skills. Time management is also important since it allows students to accomplish tasks on time and with ease. Improvements in learning at Park University can be achieved through promoting skills in task management and

Problematizing the Use and Learning of a Second Language Essay

Problematizing the Use and Learning of a Second Language - Essay Example The quest for education has attracted international students to foreign countries. Both undergraduate and graduate international students are, for example, enrolling in the United States universities in large numbers. The students, however, encounter several challenges as they strive for academic excellence and adapting to the new society. They even find it hard to socialize with the local students because of inadequacies in language proficiency and other related factors. In spite of the challenges, the students are of benefit to the learning communities both at the national and state levels. They introduce new cultures and bring about financial gains to American institutions. It is a fact that the English language is prevalent in various countries all over the world, but the level of understanding on how to use it differs. Several countries in Africa and Asia have embraced the English language. I believe that English is the most learned language in schools. I think that governments and institutions interested in enhancing their quality of learning cannot understate the value of English. Drawing examples from Chinese students, Qian, presents a comprehensive study of the teaching methods that can improve their oral English. He notes that China has given attention to the learning of oral English in colleges (Qian 2204). I think that in spite of China’s rampant economic growth, they still have to depend on the language when sourcing for foreigner investors. I fail to understand how China’s growth can continue if they can fail to embrace the language. By teaching English to their children and students in colleges, they provide grounds for their f uture growth. Qian, a lecturer at the department of English in Zhenjiang Watercraft College, argues that â€Å"it is true in China that thousands of students cannot speak fluent English although they have learned it for several years† (2204).  Ã‚  

Pros And Cons Of Teens Having Job English Language Essay

Pros And Cons Of Teens Having Job English Language Essay There are many pros, cons, and safety issues involved with letting a teen get a job while in high school. When Ann Ryans son was 15 he asked her if he could get a job. He wanted some extra money to go out with his friends. But there was a lot to think about in letting him have a job. So the question is, should teenagers have jobs? Their most important goals should be being healthy, good development ,and their education. Yet According to Statistics Canada (October 3, 2010 http://www.statcan.gc.ca/daily-quotidien/100929/dq100929c-eng.htm )During the 2009/2010 school year, about 542,000 post secondary students aged 15 to 24 held jobs. This represented an employment rate of 45%, down from 48% in 2007/2008, just before the economic downturn. Nevertheless, these rates were well above those during the 1970s when 25% of students that were employed. Some pros on letting the authors son have a job were that he could pay for his own phone cards, and school clothes, as he has size 13 feet. Very expensive for purchasing shoes, and he likes to have the brand name as well. He can put money away for a car to purchase when he is of age. The average cost of a new car if he goes that route is well in the thousands. A new 2010 Acura costs from around $40,000.00 to $51,000.00 That is a pretty penny, so probably a used car for him! Now lets see how much they would cost if they were to look in this web sight, so he might find a used car. (October3,2010 http://canada.motoseller.com/c/sys.php ) It would depend on what he wanted but the range is from 7,000 to 38,000 anyway. No matter what kind of car he wants, used or new, he still has a lot of saving to do! Oh yes, then there is insurance. And why is car insurance for teens more expensive, you ask? Well in this web site, (October 3 2010 http://www.content4reprint.com/finance/insurance/why-car-i nsurance-for-teens-is-more- expensive.htm ) They state that In 2007 in the United States, the National Highway Traffic Safety Administration reported that 13 percent of all drivers that were in fatal car accidents were between the ages of 15 and 20. They said that the Canadian statistics are similar. They also state that Other statistics show that teens are as much as four times as likely as adults to be involved in an accident with a fatality. On top of all that they state that Canada reports that 40 percent of teenage drivers who are killed in car accidents were involved in those crashes because they had been drinking. These statistics mean that teenage drivers must pay more for Canada insurance products for drivers. Then there is saving for college which can range from programs like Addictions Treatment and Prevention in 2009 that cost 1836.09 ,or Domestic and Welding Techniques in 2010 in January that cost 2913.29 If they were to look here, they could find those statistics. (October 3, 2010 http://www.georgianc.on.ca/admissions/downloads/2010- 11tuitionfees.pdf ) Or there is just going out with his friends. He likes to go to the movies which is usually 18 dollars for two people, and that is just to get in to the show. Then he will have to buy popcorn and drinks which is probably another 20 dollars. Then if he would like to take his girlfriend out for dinner at East Side Marios, a dinner package for one is 14.99. This means that for two people it would be 29.98, not including taxes. Their web sight is (October3,2010 http://www.eastsidemarios.com/#/Menu/Dinein/Marios_Every_Day_Values/Package_For_One/Pizza_Package_for_One/ ). Eventually he would learn how to appreciate the hard work it takes to ma ke money, and it would also teach him the importance of saving his money and setting financial goals. He would also have a sense of accomplishment when he received his paycheck knowing that he made this money by himself and hopefully he wouldnt spend his money the way he spends Ann Ryans money. There are cons to this as well. Stress would be a big one. In this family doctors web sight; (October3,2010 http://familydoctor.org/online/famdocen/home/children/teens/prevention/278.html) he says that Stress is what you feel when you react to pressure, either from the outside world, school, work, after-school activities, family, friends, or from inside yourself wanting to do well in school, wanting to fit in. Stress is a normal reaction for people of all ages . The doctor goes on to explain signs that people might use know theyre stressed out. Feeling depressed, edgy, guilty, tired having headaches, stomachaches, trouble sleeping, laughing or crying for no reason, blaming other people for bad things that happen to you, only seeing the down side of a situation, feeling like things that you used to enjoy arent fun or are a burden, resenting other people or your responsibilities Then the doctor goes on to tell about the things that help fight stress. Eating a well balanced meals on a regular basis, drinking less caffeine, getting enough sleep, and Exercising regularly . If they had to think about it, he or she leaves for school at 8:15 am and gets home for 3:30. That is 7 hours already out of the house. Doing work that would make any ones head hurt ! This is sort of a work day for him already. Then there is homework, after school activities. He might have a 10-11 hour day. Working on top of that might be too much for them. Then what are his plans for spending the money? Will he spend it aimlessly on things like video games and junk food? There are some people that say. They are young, let them live it up now. But then there are people that say, They need to save now and work hard so they can live later. Who do They listen to? If they work hard now, what happens later when they have worked all their lives? They could get sick later, then they have not had any fun, or they have not worked at all, so should parnents let them have fun now and have nothing later? There is also the safety aspect. Will he be safe ? The National Institute for Occupational Safety and Health, which are also part of the Centers for Disease Control, and Prevention. (October3,2010 (Niosh) http://www.cdc.gov/niosh/adoldoc.html http://www.cdc.gov/niosh/docs/99-141/pdfs/99-141.pdf) They say: In 2006, 30 youths under the age of 18 died from work related injuries, and they estimated 52,600 work-related injuries and illnesses, 15 to 17 were treated in hospital emergency rooms. They go on to say that: Only about one third of work related injuries are seen in emergency rooms. So that means that an estimated 157,000 teens are involved in work related injuries and illnesses each year. Then they tell you that Teen workers are generally believed to be at an increased risk of occupational injury because of inexperience, and limited training, and because they are reluctant to ask for help, or question existing work practices for fear of looking incapable, or stupid'. Wow what a scary thought ! So how does anyone decide? I guess first they will have to take into consideration that he wants to work . Then they will look at his stress level. Is he already under a lot of stress? And are his grades good ? Being under stress can lead to other problems like self esteem issues. Then they will have to determine the need. Some families dont have the option and everyone has to work. Or maybe he does not need to work. Just knowing fact that he would gain the experience and the knowledge that it is hard work to make the money that he would earn. Then they would have to make sure that he does not just pick any job. They do not want to let him settle for a job that he will just hate later. Or that he has to work very hard with little pay. Pay is a big part of the job, but so is being respected by the people that he will have to work with and his management. The environment in which he will be working will make a difference in his attitude about the job as well. The job would have to be flexible- making sure his education comes first is very important. Maybe he could think about a summer job. He would still have the money but not all the stress. Then make sure he is safe by contacting the Ontario Ministry of Labour. Here is there web sight. (October3,2010 http://www.labour.gov.on.ca/english/ http://www.worksmartontario.gov.on.ca/scripts/default.asp?contentID=7-1- 2mcategory=health#H2) They could ask questions like: what is the number of hours teens are allowed to work? What are the the hours of the day that they are allowed to work? What age are they allowed to work ? For instance, according to the Ontario ministry of Labour they must be: 16 years old to be on (or work at) a construction site or logging operation 15 years old to be in (or work at) a factory or restaurant kitchen, unless on a tour or accompanied by an adult 14 years old to be in (or work at) most other types of industrial establishments. Here are some examples of the types of workplaces with no minimum age requirements that the youth are allowed to volunteer: libraries, museums, art galleries, schools, day cares, camps, health care for example: hospitals, nursing homes, retirement homes,hospices (excluding kitchens). They could also work in recreation e.g., sports teams golf, tennis, ski instruction, community events like car washes, food and clothing drives. Also, according to Kids health: (October ,3 2010 http://kidshealth.org/parent/firstaid_safe/travel/job.html ) Did you know that in some states teens under the age of 16 years , they are not allowed to operate any deli slicers or fryers in restaurants, and some teens under the age of 18 may not be allowed to work past 10:00pm on a school night. Talking to him will help Kids health also states that asking questions like: Did you do something interesting at work today? Are you still doing the original job or have your responsibilities expanded? What are your new responsibilities? Did you receive any training before you took on this additional work? Are you being paid more for the extra work and , why or why not? What do you think about this new job ? Talking to him about his rights for work is a great way to keep communication flowing. And what are childrens rights? Well According to (October3,2010 http://rightsofchildren.ca/wp-content/uploads/resource.pdf) Childrens rights are described in the United Nations Convention on the Rights of the Child (CRC). The CRC describes three categories of rights. Rights of provision, for example, the right to adequate education and health care. Rights of protection, for example, the right to be protected from abuse and neglect. Rights of participation, for example, the right to be heard in matters affecting the child. Then the author could also explain that there are laws to protect him against sexual harassment, discrimination, and encourage him to seek help for all his concerns that he might have, especially if anything doesnt feel right to him. Also make sure he understands that with having rights he also has responsibilities. Like when some employers try to get away with paying teens under the table that way they can pay them less than minimum wage. Then they do a lot more work for little pay. Ann Ryan could be aware of his health and safety as well she could ask herself: does he seem tired, and is he nodding off a lot? Are his grades slipping? Does he seem stressed out? They should both try maintaining a healthy balance between school, work, and other responsibilities. By investing some time and a little research beforehand, he has found a great job for himself . This has been his first summer, and he is enjoying the freedom he gets by working. It has been a fun, worthwhile, and safe job experience so far. The pros, cons and, safety issues of teens having jobs are great things to think about. But making sure they are safe, stress free, and knowing the laws, and what they are getting in to will help them have the wonderful experience they are hoping for, and the smile on their faces when they get to spend their own money is priceless. References used in this Essay Statistics Canada (accessed October 3, 2010 published 2010 http://www.statcan.gc.ca/daily-quotidien/100929/dq100929c-eng.htm ) This represented an employment rate of students that were employed. GEORGIAN COLLEGE Semester One Fees (includes Tuition an Ancillary) for Full-Time Programs 2010 / 2011 (October 3, 2010 http://www.georgianc.on.ca/admissions/downloads/2010-11tuitionfees.pdf ) this represents the cost of some college courses This web sight represents the family doctor and what he has to say about teens having jobs(assessed October3,2010 American Academy of Family Physicians Reviewed/Updated: 12/09 Created: 01/98 http://familydoctor.org/online/famdocen/home/children/teens/prevention/278.html) The safety aspect The National Institute for Occupational Safety and Health(assessed October3,2010 (Niosh)U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES Public Health Service à ¢Ã¢â€š ¬Ã‚ ¢ Centers for Disease Control and Prevention National Institute for Occupational Safety and Health November 1999 http://www.cdc.gov/niosh/adoldoc.html http://www.cdc.gov/niosh/docs/99-141/pdfs/99-141.pdf) Ontario Ministry of Labour can help you ask questions and you can get the laws (accessed October3,2010 last modified Last Modified: accessed October 22 2010 Queens Printer for Ontario, 2002-10 (http://www.labour.gov.on.ca/english/)(www.worksmartontario.gov.on.ca/scripts/default.asp?contentID=7-1-2mcategory=health#H2) (October 3 2010 why-car-insurance-for-teens-is-more expensive the author is (Offers complete home and auto insurance solutions direct to the consumer ) http://www.content4reprint.com/finance/insurance/why-car-insurance-for-teens-is-more-expensive.htm The movie theater Cineplex http://www.cineplex.com/default.aspx East side Marios restaurant http://www.eastsidemarios.com/#/Menu/Dinein/Marios_Every_Day_Values/Package_For_One/Pizza_Package_for_One/ making sure you kids job is safe http://kidshealth.org/parent/firstaid_safe/travel/job.html Canadian Coalition for the Rights of Children 2002 http://rightsofchildren.ca/wp-content/uploads/resource.pdf

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Customs and traditions differ from one part of Nepal to another. A conglomeration lies in capital city Kathmandu where cultures are blending to form a national identity. Kathmandu Valley has served as the country’s cultural metropolis since the unification of Nepal in the 18th Century.A prominent factor in a Nepali’s everyday life is religion. Adding color to the lives of Nepalis are festivals the year round which they celebrate with much pomp and joy. Food plays an important role in the celebration of these festivals. Religion: Nepal was declared a secular country by the Parliament on May 18, 2006. Religions practiced in Nepal are: Hinduism, Buddhism, Islam, Christianity, Jainism, Sikhism, Bon, ancestor worship and animism. The majority of Nepalis are either Hindus or Buddhism. The two have co-existed in harmony through centuries. Buddha is widely worshipped by both Buddhists and Hindus of Nepal. The five Dhyani Buddhas; Vairochana, Akshobhaya, Rathasambhava, Amitabha and Amoghasiddhi, represent the five basic elements: earth, fire, water, air and ether. Buddhist philosophy conceive...