Natural Selection Theories Of Human Evolution - 1710 Words

Introduction Evolution refers to the process where living things’ behavioural and physical characteristics change over a particularly long period. As a theory first formulated by Charles Darwin in 1859, he explains the process of change that organisms go through in order to survive and better adapt to the areas they live in. Charles Darwin s theory has been widely accepted now, but it hasn t steered away from controversy particularly with regards to religion and the opposing perspective it puts across. Despite the backlash and attacks, the theory provided the basis for a lot of research and insight into evolution, and the amount of evidence available today is impossible to acknowledge (Costa 2009 p. 890). It has been shown by numerous†¦show more content†¦Over many years, the population will have organisms that have adapted to the areas they are living in. This concept of natural selection is actively taking place in humans of the world today and will affect Homo sapiens of the fu ture. Researchers, in a very detailed study, used thirty-nine people and a chimpanzee, a close relative of humans, to analyze the genetic makeup. It was not a surprise to discover that rapid evolution is still going on as evidenced by the studies; up to nine percent of the genes were changing. In another study, it was discovered that the brain of humans is also undergoing evolution. Past Evidence of Human Evolution Over the years a lot of studies have been carried out with regards to human evolution making available a great deal of information that proves that humans indeed evolved over millions of years. The many fossils found (in their thousands) have enabled students and researchers to delve into the early human life and the various aspects that kept changing over the years such as diet, locomotion, body size and the brain. Evidence shows that humans have been existence for over six million years (YANG, LU and GU 2013, p. 243). Human behaviour can be traced from the millions of footprints, paintings and figurines, and tools of stone that have been discovered. This evidence can enable researchers to know the innovations in technology made by the early humans and how andShow MoreRelatedHow Organisms Evolved From a Common Ancestors1101 Words   |  5 Pagesof evolution. This theory states, â€Å"that all living organisms have evolved from a common ancestor through natural selection acting on hereditary variation† (Reece, 2011). Many people today, know humans have evolved from a common ancestor; but they do not recognize the importance of it. Everyone should be educated about how organisms evolved because humans have evolved throughout many centuries. Charles Darwin had many theories that incorporated the main principle of biology, natural selection andRead MoreEvolution Is The Biological Ideal For The History Of Life On Earth814 Words   |  4 PagesHonors Biology Kohli December 14th, 2014 Evolution Evolution is the biological ideal for the history of life on Earth. (Evolution fact and theory). It is the process by which an organism becomes more refined over time and in response to its environment. Evolution is about how we evolved; how Neanderthals and cave men evolved into Homo sapiens much like what we are today. It’s about how creatures evolved over time, dinosaurs becoming extinct through natural selection and how sharks have been alive for overRead MoreCharles Darwin s Theory Of Evolution1173 Words   |  5 Pages It is time to start believing. Evolutionary theories were first proposed by Charles Darwin in the 19th century, and 150 years later, these ideas are still being studied and proven today. Charles Darwin set the basis for these discoveries. Natural Selection and survival of the fittest are two examples of evolution. Charles Darwin once exclaimed, â€Å"It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change.† ThisRead MoreDarwin s Theory Of Evolution1115 Words   |  5 Pages There are many theories as to what scientist believe is the forth coming of evolution or what they deem to be the reasoning behind its development. However, Charles Darwin would change the theories of evolution and would go down in history as one of the greatest influential figures in human existence. Although some scientist disagree with Darwin’s Theory, Darwin is the only person who was able to provide sufficient evidence to prove his theory of evolution. The one question that remains, Can GodRead MoreEssay about Evolution1502 Words   |  7 Pagesthat equip them for survival and reproduction, Darwin (and Wallace) independently came up with the central theory of evolutionary process: natural selection. Natural selection gives insight in to why organisms are the way that they are. Adaptations are phenotypic variants that result in the highest fitness among a specified set of variants in a given environment. In reference to humans, there are many traits that have been selected and adapted for throughout their evolutionary history givingRead MoreBelieving in Evolution Essay1171 Words   |  5 PagesBelieving in Evolution Darwin did two things; He showed that evolution was a fact contradicting literal interpretations of Scriptural legends of creation and that its cause, natural selection, was automatic with no room for Divine Guidance or Design. (Britannica Encyclopaedia) The traditional Christian view of the creation of the world is that God created everything after much thought, planning and design in just six days, these beliefs are based onRead MoreTheories on Evolution of Species1068 Words   |  4 PagesWhat is Evolution? It â€Å"is the process by which modern organisms have descended from ancient ancestors† [1]. Many great scientists have developed theories to answer the question, â€Å"Where did life, and human beings, come from?† Two major theories of evolution that still exist, and valid today are Charles Darwin’s theory, and Lamarck’s theory. These two theories have many differences, but attempt to explain evolution. Charles Robert Darwin, was a naturalist, who proposed one of the most renowned theoriesRead MoreEssay on The Validity of the Theory of Evolution1539 Words   |  7 PagesSince the publication of Charles Darwin’s Origin of Species, in which the theory of evolution has risen, people have debated the merits of the theories of creationism and evolution. The theory of is reinforced through scientific studies using DNA, genetics and its mutation, the fossil record and the change in earlier species that has been encountered, and the distribution of related species of animals over a broad geographical range. To fully understand exactly what a fossil is, look at how theyRead MoreTheory Of Evolution By Natural Selection896 Words   |  4 PagesSummary Theory of Evolution by Natural Selection. According to history, Charles Darwin is the first scientist to frame the theory of evolution by natural selection. It was publish in his book title On the Origin of Species 1859†. Darwin express the theory of evolution by natural selection as a process by which species change over a period of time. This change take place because of the changes in genetic and behavioral traits. The ability of the organisms to change over time or adjust to fit environmentalRead MoreWhat Is The Evidence For Evolution?1363 Words   |  6 PagesWhat is the evidence for evolution? I will start my essay by briefly describing, what is evolution theory? And also going into more depth of evolution theory such as; who was the first person ratifying theory and so on. The Evolution theory is that the process by which different kinds of living organism are believed to have developed from earlier forms during the history of the earth such as genetic, migration and natural selection today’s descendants show an amazing amount of similarities and diversity

The Effects Of Alcoholism On Collegiate Athletic Performance

The Negative Effects of Alcoholism on Collegiate Athletic Performance According to research and statistics, alcohol is the number one drug used by college students. Most individuals do not label alcohol as a drug due to the way it is consumed, but when considering the negative side effects that accompany alcohol, the comparison of alcohol to drugs may not be that far of a stretch. Alcohol can not only be harmful to an individual’s external health but also their internal health as well. Consumption of alcohol over a long period of time may result in negative side effects to your heart, liver, pancreas, immune system, and ultimately if enough is consumed may result in cancer. This addicting, yet dangerous drug is best known for its ability†¦show more content†¦On the surface, alcohol may seem harmless and a normal part of the college experience, however research suggests that alcohol and athleticism do not in fact go hand in hand. Excessive alcohol use among college students is widely recognized as a serious public health problem in the U nited States. A survey was conducted at a large state university in the Northeastern United States and data was collected on 109 intercollegiate athletes during the competitive season and 119 during the off-season. Participants were asked to estimate the amount of alcohol consumption levels of 4 different groups of individuals; closest athlete friend, closest non-athlete friend, typical athlete, and typical non-athlete. Results of both in-season and off-season indicated that the athletes reported that others consumed more drinks per week than they did, and insights of these social averages predicted personal use. Although the typical athlete average emerged as the strongest predictor of personal alcohol use, the relative strength of the relationships between individual behavior and the athlete and non-athlete norms varied according to seasonal status. There are many reasons to expect collegiate athletes to be excluded from the number of college students who partake in heavy drinking on a regular basis. Athletes are expected to acquire optimal health and functioning requirements in order to participate in intense training, and also

Hiv/Aids Dbq Free Essays

HIV (Human Immunodeficiency Virus) and AIDS (Acquired Immune Deficiency Syndrome) are conditions in the human body that cause failure in the immune system leading to life threatening infections and tumors. HIV was first discovered 30 years ago on June 5th, 1981 in a group of young gay men. HIV began to spread through the entire population of people. We will write a custom essay sample on Hiv/Aids Dbq or any similar topic only for you Order Now Since then over 60 million people have been infected with HIV and more than 25 million have died form an AIDS related causes (www. emedicinehealth. com). HIV/AIDS is a big issue, because it’s affecting a large portion of today’s population. Creating a public health plan will help people who have HIV/AIDS, and ones at risk of being infected. With about 40,000 people becoming HIV positive each year, the financial costs for HIV/AIDS continue to increase (www. medicalnewstoday. com). Many individual are not covered by health insurance so they can’t afford the treatment needed(Document 3). For every HIV infection prevented, $355,000 is saved in the costs of providing lifelong HIV care and treatment (www. avert. org). Fundraising is a good way to raise money for HIV/AIDS. Having more HIV/AIDS walks throughout the United States, to raise money and make people aware of the effects it has on the population today would be a good way to raise money, and get people involved. Another good way to raise money would be to hold a telethon on nation television. Distributing flyers, postcards or door knob hangers will educate local residents about what they can do to help. This money will be used to help people with HIV/AIDS to pay for not only their medical bills and therapy, but their education as well. Most people who are putting themselves at risks of being infected with HIV/AIDS don’t know what it is, or how you can catch it. Some of the cancers and infections people can get from HIV/AIDS are Salmonellosis, Tuberculosis, and Lymphomas (Document 2). The low amount of publicity is one of the main reasons why people don’t know about HIV/AIDS. The first time there was ever publicity on this topic was on July 3, 1981 when New York Times published a news story on AIDS (timeline). There should be more advertisement informing people on how they can become infected, and how it is effecting people. Creating a campaign with eye-catching posters and billboards to be used as an educational platform is a good way to inform younger people. News articles posted online or in newspapers will help as well. An individual can become HIV positive by having sexual intercourse with an infected partner, injecting drugs using a needle that has been used by an HIV positive person, or a newborn can catch the virus form the mother during pregnancy, the birthing process, or through breastfeeding (Document 1). Most people don’t know how serious HIV/AIDS are, because they are not well educated on this topic. Every eight seconds someone dies from AIDS (A Closer Walk). Providing young people with basic AIDS education enables them to protect themselves from becoming infected. Peer education would be a great way to inform people on this topic. Peer education is when a group is given information by someone who is a member of the same community, and who has already been trained in the subject. It is proven that people are strongly influenced by the attitudes and actions of others their age. Testing is a very important part of HIV/AIDS. Most people continue to spread it because they don’t know they have it. In the United States, it is likely that 20% of HIV-positive individuals are unaware of their infection. ( www. emedicinehealth. com). It is impossible to tell if an individual is HIV positive just by looking at them (Document 5). The first HIV test licensed by the United States Food and Drug Administration detects antibodies to HIV in 1985(timeline). Testing should be a mandatory thing for all sexually active people. When a yearly physical is performed, HIV/AIDS and other STD’s testing should be done. If someone doesn’t go to the doctor for a yearly physical, most places will test for HIV and AIDS for little or no cost, without knowing any personal information. It is important to get tested, so that the virus doesn’t get spread to anyone else. Of all the countries in the world, America is home to the largest number of people living with HIV (www. vert. org ). Tens of thousands of people are newly infected with HIV in America every year. Creating new ideas for fundraising, publicity, education, and testing, will help lower this number, because people will be aware of the effects HIV and AIDS can cause. Rabbi David Saperstein once said, â€Å"AIDS destroys families, decimates communities and, particularly in the poorest areas of the world, threatens to destabilize the social, cultural, and economic fabric of e ntire nations†¦ â€Å" How to cite Hiv/Aids Dbq, Papers

Importance of Effective leadership in an Organization Free-Samples

Question: How to Improve a team that has become Negative and Unproductive under Previous. Answer: Negativity in the workplace might spread like wildfire and it might even get worse targeting the externally related people of the organisation as well. Leaders or the managers of an organisation remain in charge of overcoming these disputes (Block 2016). The primary step to be undertaken in order to remove the toxicity from the team is to initiate the crucial conversation that would help to know the details of the matter that had compelled the employees to go negative. One of the leadership qualities, communication ability, of the manager is reciprocated with the attitude that the manager shows at the timer of handling fearful and damaged relationship of the team. The idea behind this communication is to gain knowledge details and accountability of the reason behind going negative (Blum and Beck 2015). Once this gets known, the next thing to join is to take action against the bullying or the rumours that had created a miserable environment in the work place. Thus, second most importa nt strategy to be undertaken is to understand the situation and work accordingly. For this, a leader should possess the problem solving skills. Professionally facilitated sessions can also help to spot the problems and challenges faced by the team (Longoni 2014). These problems need to be worked on by creating particular goal or vision to overcome the issues. The idea is to forget the mistake and move on by promising that the future will bring better achievements suppressing the existing problems. The next step that falls as a part of the leadership quality is to develop a social contract for the team behaviour. Once the problems are solved and new strategies are put to effectiveness, it is important to build a social contract that would engage in developing the behaviour of the team (Sarvaiya and Wu 2014). The idea is to suppress the negative vibes and prescribe positive vibes that is built on trust and transparent behaviour among the employees. In this stage, the leader might also take official steps by announcing or sending mails to the employees that no one should be further engaged in such activities that could create negativity in the team (Longoni 2014). In case of any kind of distress, any employee is free to discuss their issues with the leader. Dysfunctional activities will lead to loss of opportunities and achievement that would have otherwise gained as a team. Building better opportunities of communication and becoming cohesive as a single team is the most appropriate requirement for the members to work as a team. The idea is to work towards achieving the same goal of business that would ultimately lead to improvement in the productivity of the organisation. In order to do so, removing the negative Nancy from the team is important (Blum and Beck 2015). Better communication with the members of the teams can only help to overcome the barriers and the conflicts that the team faces. It falls in the part of the manager to initiate that communication and create better environment for every person to work in the organisation. References: Block, P., 2016.The empowered manager: Positive political skills at work. John Wiley Sons. Blum, H. and Beck, D., 2015. Shared Responsibility Approach: How to resolve bullying in three steps.InterAction-The Journal of Solution Focus in Organisations,7(2), pp.88-96. Longoni, A., 2014. Organisational Responsibility and Worker Commitment: The Definition and Implementation of Sustainable Operations Strategies. InSustainable Operations Strategies(pp. 21-27). Springer International Publishing. Sarvaiya, H. and Wu, M., 2014. An integrated approach for corporate social responsibility and corporate sustainability.Asian social science,10(17), p.57.