Drugs and Music Revolution of 1960s Essay Example

Drugs and Music Revolution of 1960s Paper Essay on The 1960s Music and Drug Revolution The decade of the 1960s is most likely talked about because of the Vietnam War, but most over look what was going on in America. Back in the states the faces of angry anti- war activists were on every major street corner you looked, they protested for peace and to get their brothers out of the Jungles where the vicious war took place. The sixties were also the forefront of the Civil Rights Movement for Black Americans to receive racial dignity, economic and political self-sufficiency: with voting rights, and also freedom from white Americans. Lastly the four major political ssassinations of John F Kennedy, Malcolm X, Martin Luther King Jr. , and Robert F. Kennedy all took place one after another in this decade leaving the Americans in heartbreak and turmoil. Politically leaving the United States at a standpoint on what the hell is there to do next. To get away from the mess, the most effective escape of the time was the music. It changed the depressing feeling to help make the people somewhat forget what harsh realities are happening around them and give them hope. With the music so empowering to some this brought to us what we now know as the Hippie Movement. (Yapp). Most were fed up with the United States leading to thousands of carefree people to hard drugs and rock and roll. During the hard ships in the sixties people used music to find the glass half full instead of half empty. All of the events of the sixties had an effect on the way the people dressed then and still to this day. Self-expression of the 1960s led men and women to grow their hair long and dress freely in bright colors and daring prints that were outrageous and had never been seen before. We will write a custom essay sample on Drugs and Music Revolution of 1960s specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Drugs and Music Revolution of 1960s specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Drugs and Music Revolution of 1960s specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Events: The 1960s started out on a good foot with John F Kennedy, as President America as happy with the way politics were being handled. He was the second youngest president to ever be in office. John was elected in 1961 and was putting a pretty big hand print on the Americans with big events such as the Bay of Pigs Invasion, the Cuban Missile Crisis, the building of the Berlin Wall, the Space Race, the African- American Civil Rights Movement, and early stages of the Vietnam War. Until 1963 Lee Harvey Oswald assassinated him with a shot to the upper back and a final shot to the head. Pronouncing him dead 30 minutes alter. To this day Kennedy continues to rank ighly in public opinion ratings of U. S. presidents. Following Kennedys assassination were the deaths of civil rights leaders Malcolm X, Martin Luther King Jr. , and JFKs brother Robert F. Kennedy. All four of these deaths happening in such a short amount of time left Americans with really no guidance on what to do next and what was going to happen to them. Socially the United States was tired of being let down and many decided to go about their own ways of carefree living. Many were also in poverty so looking for a brighter side to life. The outcome of looking for a better life was to be a hippie. The ubculture started out with the youth and quickly rose and spread across country and even into some other countries. Hippies created their own communities, listened to psychedelic rock, embraced the sexual revolution and many used drugs such as Marijuana, LSD and mushrooms to explore an altered state ot consciousness. Something that cannot be ignored was the Vietnam War that mainly took place in the 1960s. The war had an estimated 47, 355 American casualties, with men and women losing lives left and right many were in a deep depression. The war went on from 1955 to 1975 with the United States getting highly involved in the 60s. The US got involved to help prevent communism in South Vietnam for containment; with overwhelming firepower, air support, airstrikes, search and destroy operations, and lots of heavy artillery. Although the war did not end until the 70s, the capture of Saigon by the Vietnam Peoples Army in 1975 marked the end of the war, and North and South Vietnam were reunified the following year. Descriptive: The different styles and trends of the sixties are extremely different with all the different social groups. Starting off with the early times of the sixties when John F. Kennedy was still the president and first lady Jacqueline Kennedy (Illustration 1) was the icon of elegance and poise. Her style consisted of pillbox hats, suits in pastel colors with big buttons and short Jackets. A casual day consisted of capris and versatile layers in bright colors these styles were increasingly popular. The sixties were also a time of the British Invasion in America. The ever so popular bad The Beatles had arrived in America at this time with their hit songs still listened to until this day. This sparked a style of what we call Mod. Mod short for Modernists; consisting of women copying mens style with fitted Levis Jeans and sneakers. Also wearing mens shirts, tailors suits, mini skirts, A-line skirts, and trousers. The Mod style icon was Twiggy (Illustration 2), a popular British model who broke the rules for women style and taking them out of the conservative long dress and long skirt confines of the previous 1950s. Finding your personal style and dressing how you felt was the biggest trend of all. The best known and most significant of all was the Hippie style catalyst. Giving the people of the sixties ultimate comfort and self-expression. This style consisted of oose- fitting clothes; most often tie dyed pieces and adding the perfect accent to top off an outfit with a flower. Flowers showing a sign for peace during the rough times of war going on back in Vietnam. Hip-hugger bell-bottom Jeans were incredibly popular for both men and women and following these Jeans were peasant shirts, skirts and halter-tops (Illustration 3). Another trend was women sewing patches of different cloth on to their clothes to either cover holes or simply for decoration. Lastly in the late sixties the anything goes look was the outcome after all the not so everlasting trends in the previous years. Of course more new trends did thrive such as closer to the body clothing with firmly belted waistlines on dresses, suits and blouses showing off the hips. The film, Bonnie and Clyde gave the inspiration for jumper dresses and suits. The film also gave off wide leg pants giving a more professional look; that carried on into the 1970s, compared to the very messy hippie look. The hippie look was actually inspired and really made in toa mess by the music of the 1960s. Music was being influenced by so many new trends that had never happened before, the new ways of politics, economics and carefree lifestyle.. Drugs elped ease the pain and became the most influential variables in the music of the s es The rock and roll and pop music all started out small and underground until it became mainstream. Soon to be known as the psychedelic era, this era introduced drugs to be an important aspect of music and a part of the typical day of a rock star. The listeners of the music also used drugs like acid and marijuana to enhance the overall experience of the sounds, movements and brightness of lights during the shows and music festivals. Bands such as The Byrds and The Grateful Dead used drugs like LSD, marijuana, and heroin (Illustration 4). They believed using drugs would make a difference of the previous music in the 1950s, and were very successful with blowing the 50s music away. The effect that the drugs had on the band was turning them into real musicians, ones that could capture the audiences attention in just a couple of strums ofa guitar. This new music started around the San Francisco area and spread across the nation. Young people greeted the new genre of music with open arms and drugs helped change the way to enjoy the new wave of music. It also became apparent that the British group The Beatles started to use LSD when ecording in the studio. The song Tomorrow Never Knows was a product of the famous group high on an acid trip. Toward the end of the sixties the iconic music festival called The Peace and Music Festival of Woodstock. The three-day festival was hugely successful and the first ever of its kind to occur (Illustration 5). More than two million people tried to get in, with borders and state lines closed due to the amount of people. The festival headlined different bands from across the world and was a place to demonstrate peace. Even though during most of the three-day event it oured rain it did not stop anyone from putting a damper on the mood. Putting a close to the sixties a few years later was the end of the Vietnam War however the end of war did not put an end to drug use. Many people had lost their lives in the psychedelic era either from a gunshot in the Far East of a prick of a heroin laced needle in the United States. These tragedies were captured in the music of the sixties and is remembered and reminded to the generations to come. Compare and Contrast: From the radical 1960s to the present time now there are so many things have changed and so many things have also stayed the same. Starting with the fashion of the 60s consisting of women wearing mens wear clothing as a huge trend that went on throughout the time and is still to this day. There is also the mid 60s, which was when the hippie look was widely popular, and the baggy look with long shirts and pajama looking pants with low hemlines. Today everything is a high hemline and form-fitting clothes from tight denim Jeans to crop top shirts for girls. Although the 60s did go through a phase of tight bell bottom pants made of polyester. Thankfully, those are not seen any more in present time. Another comparison is the Civil Rights Movement that happened in the sixties. Black Americans wanted the legal freedom from whites, voting rights, as well as inside schools, and over all racial dignity. Ever since this Conclusion: The 1960s was no doubt a revelation that changed America forever. With so many monumental experiences that will most likely never happen again. Fashion is of course torever changing but more so in the 1 Starting early on witn clean cut pastel suits to the late sixties tie dye shirts; skintight bell-bottom Jeans and long hair were the trend. All of the tragedies in the sixties it had a huge impact on music and hat the American people felt, what they were feeling was the way they dressed and showed self-expression through their clothes. Music was a huge part of peoples lives back then, that was the only thing that young adults had to look forward to and music is even more relatable today. Music speaks to people in ways that no one can describe, almost life changing to some. The artists and bands of the 60s talked about what was going on around them inside their song lyrics. Making it easily relatable to their fans and to the American people to make it seem like they were all in the mess together and never by themselves.

buy custom Oticon and Information Technology essay

buy custom Oticon and Information Technology essay Information technology is a significant facet in any organization, be it a multinational or a small business. It is also essential in society in general. Integrating information technology in any office set up means employment of computer software, hardware and processor-oriented information systems. Most of the modern organizations have incorporated information technology in their systems, for smooth running of the firms. Effective inclusion of information technology in the office, could lead to remarkable outcomes, though it could also have its demerits. The major limitation of information technology is seen to be the redundancy of managers and workers. There are however several organizations that have been effectively renovated with the incorporation of information technology, one such example being Oticon. Oticon and Information Technology For the main part, Oticon demonstrates a good paradigm of successful incorporation of computer-based technology in redesigning an organization positively. Oticon is an international producer of hearing aids with its headquarters based in Denmark. This company was on the verge of being rendered extinct, due to competition from an American company that was producing hearing aids that were preferable to the larger market. This was when the firm got a new chief executive officer, Lars Kolind, in 1988 who revamped Oticon. Bjorn-Andersen and Turner (1995) suggest that information technology was not the sole reason for the far-reaching changes that took place at Oticon, but it made the metamorphosis possible and pragmatic. Information technology was applied by Oticon to make the work environment more efficient and mobility of workers was increased. Information was also afforded to workers at more convenient places and time as compared to the inconveniences experienced with the office syste m. Role of Information Technology in Organizations Information technology in an organization takes on a facilitative position rather than the primary role. It enables a company to undertake restructuring of its management and day to day workings as Oticon did. This kind of technology is used in creation of new business ideas, inventing novel methods of working and solving organizational hitches. Computer software for example, is used to design an easier and more effective way of coordinating the affairs of the company. For instance there can be accounting software to help in book keeping and inventory management. The Point of Sale (POS) system, for example ensures that whenever an item is sold from the stock in a business then the reduction in stock is reflected in the system. Applying information technology in organizations is manifested through the use of e-mails to communicate in an office. More recently there has been an increase of businesses and even big organizations using social media sites, such as Facebook, to advertise and market their products. Organizations also design websites where potential investors and clients can access information on the firm. Power point presentations are also used in company meetings to make a task more effectual and easy to understand. Most organizations have also resolved to use digital versions of files instead of filing cabinets filling a whole room with documents and files. In this way a huge amount of historical data can be stored and easily retrieved. Organizations also use computers to store the database of their employees. This is also useful for potential employees who send their job applications through the internet. Organizations also use information technology to reach out to their customers and receive feedback on products as well as to improve on customer care. Research can also be done on the internet to ensure that an organization keeps up with modern products and market trends. The Case of Johnsonville Sausage LLC Johnsonville Sausage LLC is an American company based in Wisconsin which mainly deals with manufacturing of meat products. This is one of the big companies that has effectively used technological strategies to sway global markets and consumer tastes. In 2003, the company mapped out an information technology plan to set up an all inclusive SAP policy. This meant that the firm would advance its visibility and be able to exploit more sources of raw materials, end products and what the customers require most. Johnsonville Sausage LLC utilized the Cisco Aironet 350 Series and set up a wireless local area network to follow up on the movement of its manufactured goods (Cisco Systems Inc. 2001). The company has also used other Cisco products such as firewalls to protect confidential company information and money, as well as routers and hubs. Johnsonville Sausage has also made use of wireless machinery to connect computers which are on the floor to the network. This is in turn used to check on the inventory as it stands at that particular time. All these illustrations demonstrate that Johnsonville Sausage LLC has indeed transformed due to information technology advancements. I would like to work in such an environment as this would mean that work gets done faster as information is available and is conveniently retrieved. In such an environment there is advanced technology and safeguards and the business is expanding meaning there is job security and better salaries too. Conclusion This paper has illustrated that information technology if effectively utilized and integrated by an organization can lead to a remarkable transformation. It is important to note that the role of information systems and technology is merely enabling or facilitative. To obtain optimum organizational transformation, a firm still has to do much more, for instance building up the main competencies and careers of the organization. Buy custom Oticon and Information Technology essay

Are Kids overmedicated Essay Example | Topics and Well Written Essays - 500 words

Are Kids overmedicated - Essay Example In this paper I will be attempting shade more light on the whole topic of overmedication in kids by answering the questions. There is evidence pointing at the fact that pediatricians are prescribing over ten million antibiotics for unnecessary cases e.g. common flu, asthma and even in some cases headache. The Centers for Disease Control also report that over ten thousand kids are on psychostimulant drugs such as Ritalin. It was estimated that approximately 7.5% of children in the United States in the age ranges of six years to seventeen were using medicines for behavior and emotional problems as at 2011. The number of children on psychostimulants has been rising sharply in the past few years. What this means is that there are many children out here receiving either antibiotics, drugs for behavioral problems or many others in large numbers that can be avoided. It points to an interesting fact; either the psychiatrists or medical doctors are overwhelmed or too busy to take enough time and provide quality service. It could also mean that parents are very busy give their children healthy home environments. Also schools must take a portion of the blame for their busy schedules that limit recess time or completely do not have activities for children to relax. Pharmaceutical companies should be blamed largely for the overmedication being reported in kids due to their marketing campaigns which are mostly driven by profitmaking (Insel, 2014). The consequences of overmedication can be devastating considering the health of these kids who are still growing. Overt and under-treatment are some of the consequences. Due to carelessness or clinicians being to busy, the children are subjected to medication even when conditions can be manage by therapy for instance in the case of psychostimulants. Antibiotic over or misuse may arise especially in situations where diagnosis is very uncertain e.g. in infections of the ears.

Perception and Decision Making Essay Example | Topics and Well Written Essays - 1000 words

Perception and Decision Making - Essay Example Perception is defined on the Wikipedia as follows: "In psychology and the cognitive sciences, perception is the process of acquiring, interpreting, selecting, and organizing sensory information." (Wikipedia, 2006b). It goes further explaining how perceptions are formed, how they change, and how there can be no perception at all. Let's see: "Many cognitive psychologists hold that, as we move about in the world, we create a model of how the world works. That is, we sense the objective world, but our sensations map to percepts, and these percepts are provisional, in the same sense that scientific hypotheses are provisional (cf. in the scientific method). As we acquire new information, our percepts shift. () Just as one object can give rise to multiple percepts, so an object may fail to give rise to any percept at all: if the percept has no grounding in a person's experience, the person may literally not perceive it." (Wikipedia, 2006b). "Decision making is the cognitive process of selecting a course of action from among multiple alternatives. Every decision-making produces a final choice. It can be an action or an opinion. It begins when we need to do something but we do not know what. Therefore decision-making is a reasoning process which can be rational or irrational, and can be based on explicit assumptions or tacit assumptions." (Wikipedia, 2006a). In the decision-making process many biases can get in the way. Among the reasons for this kind of drawback the Wikipedia enumerates the following reasons: "Selective search for evidence Premature termination of search for evidence Conservatism and inertia Experiential limitations Selective perception Wishful thinking or optimism Recency Repetition bias Anchoring and adjustment Group think - Peer pressure Source credibility bias Incremental decision making and escalating commitment Inconsistency Attribution asymmetry Role fulfillment Underestimating uncertainty and the illusion of control Faulty generalizations Ascription of causality". (Wikipedia, 2006a). On a closer analysis to all these causes that provoke error in the decision-making process it is easy to find "perception" at the core of all these evils. Most of the causes for faulty decisions in the business real of action happen due to misperceptions in one way or the other. The Wikipedia goes on explaining how the ethical principles of decision making vary widely. It lists the following principles and methods as the most common in any decision-making process: "the most powerful person/group decides (method: dictatorship or oligarchy) everyone participates in a certain class of meta-decisions (method: parliamentary democracy) everyone participates in every decision (direct democracy, consensus decision making)" (Wikipedia, 2006a). As "Groundwork for Making Effective Decisions" the Josephson Institute of Ethics states the following concepts, emphasizing our responsibility and accountability in any decision-making process: "Whether or not we realize it at the time, all our words, actions and attitudes reflect choices. A foundation to good decision-making is acceptance of two core principles: we all have the power to decide what we do and what we say, and we are morally responsible for the consequences

Ethical Principle Essay Example for Free

Ethical Principle Essay Ethical principles have a huge portion in the impact of intentional or assisted euthanasia. Beneficence according to Beauchamp states, â€Å"compassion; taking positive action to help others; desire to do good; are core principle of our patient advocacy† (Beauchamp,2009,p38). The value of beneficence simply states to do good to achieve the best possible outcome. For example, medical research is expanding and exploring numerous cures for diseases that are causing harm to people. Doctors that are approving euthanasia are because of empathy and kindness for the patient. The doctors and physicians are trying to do good for the patient by performing euthanasia because they know the prognoses is poor and the medical treatment won’t cure the disease. Utilitarianism theory can also be applied to the situation, â€Å"this theory supports what is best for most people. The value of the act is determined by its usefulness, with the main emphasis on the outcome or consequences†(American Nursing Association). In other words, the greatest value for all, is the selection that is morally accurate. For example, some patients support active euthanasia because it ends the suffering of the person. The choice to end life in return brings the great happiness for large amount of people. The autonomy theory states, â€Å"Agreements to respect right to self determine is a course of action and support of independent decision making†. (Beauchamp,2009 p.38). People should have their own choice to make decision for themselves when it involves their lifeà ¢â‚¬â„¢s. If the member is unable to make his or her needs known, an inform consent or power of attorney should be made before hand of the patient wishes. The ethical theory such as deontology mentions, people should abide to their task and obligations when review an ethical dilemma. Reference Beauchamp, T. L., Childress, J. F. (2009). Principles of biomedical ethics (6th ed., pp. 38-39). New York, NY: Oxford University Press. American Nurses Association. Retrieved from website: http://www.nursingworld.org/MainMenuCategories/EthicsStandards/Resources/Ethics-Definitions.pdf

The Kate Moss Effect :: Beauty Media Modeling Self Esteem Essays

The Kate Moss Effect â€Å"Women, you know that crummy feeling you get after leafing through a fashion magazine chock full of models who, let’s face it, look way better than you? A new study, The Kate Moss Effect, suggests that it‘s not all in your head† (Jennifer Thomas, HealthScout). There have been so many times in my life, and I’m sure in other women’s lives as well, that I feel totally inadequate in comparison to, let’s say, a Victoria’s Secret Model. I just have one question: How is a woman ever supposed to feel good about herself when the only thing being consistently promoted is perfection? There have been many experiments done, in which doctors study the effects that the pressure to have a perfect body has on the average female. However, I am going to concentrate on the Kate Moss Effect for the simple reason, that of all the studies I looked at, The Kate Moss Effect seemed to be the most realistic, and straight forward. So let’s get back to that good old feeling of sifting through the many discouraging pages of a modern day fashion magazine. The Kate Moss Effect is a study based around the simple everyday activity of viewing a publication crammed with aptness. Basically, women were gathered to look at pages bubbling with models who were virtually flawless and their reactions to this exposure were then observed. To be exact, researchers divided 91 Caucasian women, ages 18 to 31into two groups. One group was shown advertisements for various everyday products such as nail polish, toothpaste, and gum. However, these ads featured rail thin females, the virtual living, breathing representation of faultlessness. The second group was shown ads for the same types of merchandise. Except the second group’s ads didn’t have people in them. â€Å"Researchers found that women who looked at advertisements featuring stereotypically thin and beautiful women showed more signs of depression and were more dissatisfied with their bodies after only one to three minutes of viewing the pictures. Depression levels registered a slight uptick, while self-esteem was unchanged† (Jennifer Thomas, Health Scout). Laurie Mintz, the lead author of the study and the associate professor of educational and counseling psychology at University of Missouri-Columbia said, â€Å"The women who registered the biggest drop in self image after viewing the

A Freshwater Aquatic and Terrestrial Food Web

————————————————- Food web From Wikipedia, the free encyclopedia A  freshwater  aquatic  and  terrestrial  food web. A  food web  (or  food cycle) depicts feeding connections (what eats what) in an  ecological communityand hence is also referred to as a  consumer-resource system. Ecologists can broadly lump all life forms into one of two categories called  trophic levels: 1) the  autotrophs, and 2) the  heterotrophs. To  maintaintheir bodies, grow, develop, and to  reproduce, autotrophs produce  organic  matter from  inorganicsubstances, including both  minerals  and  gases  such as  carbon dioxide.These  chemical reactionsrequire  energy, which mainly comes from the  sun  and largely by  photosynthesis, although a very small amount comes from  hydrothermal vents  and  hot springs. A gradient exists between troph ic levels running from complete autotrophs that obtain their sole source of carbon from the atmosphere, to  mixotrophs(such as  carnivorous plants) that are autotrophic organisms that partially obtain organic matter from sources other than the atmosphere, and complete  heterotrophs  that must feed to obtain organic matter.The linkages in a food web illustrate the feeding pathways, such as where heterotrophs obtain organic matter by feeding on autotrophs and other heterotrophs. The food web is a simplified illustration of the various methods of feeding that links an ecosystem into a unified system of exchange. There are different kinds of feeding relations that can be roughly divided into  herbivory,  carnivory,  scavenging  andparasitism. Some of the organic matter eaten by heterotrophs, such as  sugars, provides energy.Autotrophs and heterotrophs come in all sizes, from  microscopic  to many  tonnes  Ã¢â‚¬â€œ from  cyanobacteria  togiant redwoods, and from  viruses  and  bdellovibrio  to  blue whales. Charles Elton  pioneered the concept of food cycles, food chains, and food size in his classical 1927 book â€Å"Animal Ecology†; Elton's ‘food cycle' was replaced by ‘food web' in a subsequent ecological text. Elton organized species into  functional groups, which was the basis for  Raymond Lindeman's classic and landmark paper in 1942 on trophic dynamics.Lindeman emphasized the important role of  decomposer  organisms in a  trophic system of classification. The notion of a food web has a historical foothold in the writings of  Charles Darwin  and his terminology, including an â€Å"entangled bank†, â€Å"web of life†, â€Å"web of complex relations†, and in reference to the decomposition actions of earthworms he talked about â€Å"the continued movement of the particles of earth†. Even earlier, in 1768  John Bruckner  described nature as â€Å"one contin ued web of life†. ————————————————-Food webs are limited representations of real ecosystems as they necessarily aggregate many species into  trophic species, which are functional groups of species that have the same predators and prey in a food web. Ecologists use these simplifications in  quantitative  (or mathematical)  models  of trophic orconsumer-resource systems  dynamics. Using these models they can measure and test for generalized patterns in the structure of real food web networks. Ecologists have identified non-random properties in the  topographic  structure of food webs. Published examples that are used in  meta analysis  are of variable quality with omissions.However, the number of empirical studies on community webs is on the rise and the mathematical treatment of food webs usingnetwork theory  had identified patterns that are comm on to all. Scaling laws, for example, predict a relationship between the topology of food web predator-prey linkages and levels of  species richness. Trophic levels Main article:  Trophic level A trophic pyramid (a) and a simplified community food web (b) illustrating ecological relations among creatures that are typical of a northern  Boreal  terrestrial ecosystem. The trophic pyramid roughly represents the biomass (usually measured as total dry-weight) at each level.Plants generally have the greatest biomass. Names of trophic categories are shown to the right of the pyramid. Some ecosystems, such as many wetlands, do not organize as a strict pyramid, because aquatic plants are not as productive as long-lived terrestrial plants such as trees. Ecological trophic pyramids are typically one of three kinds: 1) pyramid of numbers, 2) pyramid of biomass, or 3) pyramid of energy. [4] Food webs have trophic levels and positions. Basal species, such as plants, form the first level a nd are the resource limited species that feed on no other living creature in the web.Basal species can be autotrophs ordetritivores, including â€Å"decomposing organic material and its associated microorganisms which we defined as detritus, micro-inorganic material and associated microorganisms (MIP), and vascular plant material. â€Å"[11]:94  Most autotrophs capture the sun's energy in  chlorophyll, but some autotrophs (the  chemolithotrophs) obtain energy by the chemical oxidation of inorganic compounds and can grow in dark environments, such as the sulfur bacterium  Thiobacillus, which lives in hot  sulfur springs.The top level has top (or apex) predators which no other species kills directly for its food resource needs. The intermediate levels are filled with omnivores that feed on more than one trophic level and cause energy to flow through a number of food pathways starting from a basal species. [12] ——————— Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€Ã¢â‚¬â€- In the simplest scheme, the first trophic level (level 1) is plants, then herbivores (level 2), and then carnivores (level 3). The trophic level is equal to one more than the chain length, which is the number of links connecting to the base.The base of the food chain (primary producers or  detritivores) is set at zero. [3][13]  Ecologists identify feeding relations and organize species into trophic species through extensive gut content analysis of different species. The technique has been improved through the use of stable isotopes to better trace energy flow through the web. [14]  It was once thought that omnivory was rare, but recent evidence suggests otherwise. This realization has made trophic classifications more complex. [15] Energy flow and biomass Main article:  Energy flow (ecology) See also:  Ecological efficiencyThe Law of Conservation of Mass dates from Antoine Lavoisier's 1789 discovery that ma ss is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction. [24]:11 Left:  Energy flow diagram of a frog. The frog represents a node in an extended food web. The energy ingested is utilized for metabolic processes and transformed into biomass. The energy flow continues on its path if the frog is ingested by predators, parasites, or as a decaying  carcass  in soil.This energy flow diagram illustrates how energy is lost as it fuels the metabolic process that transform the energy and nutrients into biomass. Right:  An expanded three link energy food chain (1. plants, 2. herbivores, 3. carnivores) illustrating the relationship between food flow diagrams and energy transformity. The transformity of energy becomes degraded, dispersed, and diminished from higher quality to lesser quantity as the energy within a food chain flows from one trophic s pecies into another. Abbreviations: I=input, A=assimilation, R=respiration, NU=not utilized, P=production, B=biomass. 25] Food webs depict energy flow via trophic linkages. Energy flow is directional, which contrasts against the cyclic flows of material through the food web systems. [26]  Energy flow â€Å"typically includes production, consumption, assimilation, non-assimilation losses (feces), and respiration (maintenance costs). â€Å"[5]:5  In a very general sense, energy flow (E) can be defined as the sum ofmetabolic  production (P) and respiration (R), such that E=P+R. The mass (or biomass) of something is equal to its energy content. Mass and energy are closely intertwined.However, concentration and quality of nutrients and energy is variable. Many plant fibers, for example, are indigestible to many herbivores leaving grazer community food webs more nutrient limited than detrital food webs where bacteria are able to access and release the nutrient and energy stores. [ 27][28]†Organisms usually extract energy in the form of carbohydrates, lipids, and proteins. These polymers have a dual role as supplies of energy as well as building blocks; the part that functions as energy supply results in the production of nutrients (and carbon dioxide, water, and heat).Excretion of nutrients is, therefore, basic to metabolism. â€Å"[28]:1230-1231  The units in energy flow webs are typically a measure mass or energy per m2  per unit time. Different consumers are going to have different metabolic assimilation efficiencies in their diets. Each trophic level transforms energy into biomass. Energy flow diagrams illustrate the rates and efficiency of transfer from one trophic level into another and up through the hierarchy. [29][30] ————————————————-It is the case that the  biomass  of each  trophic level  decreases from the base of the chain to the top. This is because energy is lost to the environment with each transfer as  entropy  increases. About eighty to ninety percent of the energy is expended for the organism’s life processes or is lost as heat or waste. Only about ten to twenty percent of the organism’s energy is generally passed to the next organism. [31]  The amount can be less than one percent in animals consuming less digestible plants, and it can be as high as forty percent in  zooplankton  consuming  phytoplankton. 32]  Graphic representations of the biomass or productivity at each tropic level are called  ecological pyramids  or trophic pyramids. The transfer of energy from primary producers to top consumers can also be characterized by energy flow diagrams. [33] Food Web A  food web  is a graphical description of feeding relationships among species in an  ecological community, that is, of who eats whom (Fig. 1). It is also a means of showing how  energy   and materials (e. g. ,  carbon) flow through a community of  species  as a result of these feeding relationships.Typically, species are connected by lines or arrows called â€Å"links†, and the species are sometimes referred to as â€Å"nodes† in food web diagrams. Relationships between soil food web, plants, organic matter, and birds and mammals. â€Å"The  herbivores  are usually preyed upon by carnivores, which get the  energy  of the  sunlight  at third-hand, and these again may be preyed upon by other carnivores, and so on, until we reach an animal which has no enemies, and which forms, as it were, a terminus on this food cycle. There are, in fact, chains of animals linked together by food, and all dependent in the long run upon plants.We refer to these as ‘food-chains', and to all the food chains in a community as the ‘food-cycle. ‘† A food web differs from a food chain in that the latter shows only a portion of the food web involving a simple, linear series of species (e. g. ,  predator,  herbivore,  plant) connected by feeding links. A food web aims to depict a more complete picture of the feeding relationships, and can be considered a bundle of many interconnected food chains occurring within the community. All species occupying the same position within a food chain comprise a trophic level within the food web.For instance, all of the plants in the foodweb comprise the first or â€Å"primary producer† tropic level, all  herbivores  comprise the second or â€Å"primary consumer† trophic level, and carnivores that eat  herbivores  comprise the third or â€Å"secondary consumer† trophic level. Additional levels, in which carnivores eat other carnivores, comprise a tertiary trophic level. Elton emphasized early on that food chains tend to show characteristic patterns of increasing body size as one moves up the food chain, for example from  phytoplankton  to inv ertebrate grazers to fishes, or from insects to rodents to larger carnivores like foxes.Because individuals of small-bodied species require less  energy  and food than individuals of larger-bodied species, a given amount ofenergy  can support a greater number of individuals of the smaller-bodied species. Hence, ecological communities typically show what Elton called a pyramid of numbers (later dubbed the Eltonian pyramid), in which the species at lower trophic levels in the food web tend to be more numerous than those at higher trophic levels.A second reason for the pyramid of numbers is low ecological efficiency: some  energy  is lost at each transfer between consumer and prey, such that theenergy  that reaches top predators is a very small fraction of that available in the plants at the base of the food web. Although there is wide variation among types of  organisms  and types of  ecosystems, a general rule of thumb is that available  energydecreases by about a n order of magnitude at each step in the food chain.That is, only about 10% of theenergy  harvested by plants is consumed and converted into herbivore  biomass, only 10% of that makes it into  biomass  of primary carnivores, and so on. Thus, the structure of food webs is dictated in part by basic constraints set by  thermodynamics. The predictable dissipation of  energy  at each step in food chains is one of the factors thought to limit the length of most food chains to a maximum of four or five steps. Cohen et al. (2003) emphasized that the correlations mong body size, abundance, and trophic level produce a characteristic trivariate structure to (pelagic) food webs (Fig. 2). The pyramid of numbers is less obvious at the most basal levels in terrestrial communities based on trees, which are typically much larger than theherbivores  that feed on them. Pyramids of numbers or  biomass  may even be inverted in cases where the microscopic plants that support the web s how very rapid turnover, that is, where they grow and are eaten so rapidly that there is less plant  biomass  than herbivore  biomass  present at a given time. ————————————————-Decomposers are an assemblage of small  organisms, including invertebrates,  fungi, and  bacteria, that do not fit neatly into any trophic level because they consume dead  biomass  of organisms from all trophic levels. Decomposers are a critical component of the food web, however, because they recycle nutrients that otherwise would become sequestered in accumulating detritus. All food chains in a community constitute a food web. A  food web is simply the total set of feeding relationship amongst and between the species composing a biotic community. These relationships may achieve considerable complexity.With many food chains and cross connecting links, there is greater opportunit y for the prey and predator population in an ecosystem to adjust to the changes. ————————————————- The producer-consumer arrangement is one kind of structure known as trophic structure(trophic = food) and each food (nutritional) level in the food chain is called trophic level  or energy level. The first trophic level in an ecosystem is occupied by the plants-producers (green plant-primary producers), because they utilize solar energy which is transformed to chemical form during photosynthesis.The energy stored in food or green plants is consumed by the plant eaters (herbivores) which make the second trophic level. Herbivores are also called primaryconsumers. Primary consumers in turn are eaten by carnivores (also known as secondary consumers) which occupy third trophic level. Secondary consumers (Primary carnivores) may be eaten by other carnivores (secondary or top carn ivores) which are known as tertiary consumers and occupy fourth trophic level. Decomposer occupy fifth trophic level in an ecosystem.Food Web- In nature, food chain relationships are very complex. They never operate as isolated sequences, as one organism may form the food source of many organisms and so on. Thus, instead of a food chain, a number of food chains are interconnected with each other and form a web-like structure known as ‘food web'. For example, grass may be grazed by grasshoppers as well as cattle, rabbits and each of these may be eaten by different type of carnivores, such as birds, toads, snakes, foxes, depending on their food habit.Thus, a particular organism may not occupy the same tropic level in every food chain; it may simultaneously behave as secondary, tertiary or a top consumer. Organisms, whose food is obtained from plants by the same number of steps are said to belong to the same tropic level. Thus, green plants occupy the first tropic level or the pr oducer level. The plant grazers occupy the second tropic level or primary consumer or herbivore level (all plant-grazing insects, cattle, deer, rabbits, etc. ).Flesh-eaters, that eat herbivores, form the third tropic level or the secondary consumer or carnivore level-1 (frogs, small fish, etc. ). The third tropic level is the tertiary consumer or carnivore level-2, which eats the flesh of herbivores and secondary consumers. In a similar fashion, tropic levels can be expanded based on the food habits of organisms. Charles Elton, a British ecologist, however, concluded that the number of links in a food chain rarely exceeds five, because in the process of energy transfer there is always the loss of energy to the environment.It is the energy transfer mechanism which determines the number of links in a food chain. Man and many other animals who are omnivores occupy different tropic levels in food chains in relation to pure carnivores. The food web maintains the stability of the eco-syst em. For example, green land can be grazed by different organisms like insects, rabbits, rodents, etc. The insects then can be eaten by frogs which can be eaten by snakes. Snakes can either be eaten by hawks