Rate of Photosynthesis: Limiting Factors

Rate of photosynthesis: limiting factors Limiting factors The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature. In any given situation any one of these may become a limiting factor, in other words the factors that directly affects the rate at which photosynthesis can take place masking the effects of the other factors. Light and rate of photosynthesis At low light intensities, as light intensity increases, the rate of the light-dependent reaction, and therefore photosynthesis generally, increases proportionately (straight line relationship).The more photons of light that fall on a leaf, the greater the number of chlorophyll molecules that are ionised and the more ATP and NADPH are generated. Light dependent reactions use light energy and so are not affected by changes in temperature. Rate of photosynthesis Intensity of light As light intensity is increased further, however, the rate of photosynthesis is eventually limited by some other factor. So the rate plateaus. At very high light intensity, chlorophyll may be damaged and the rate drops steeply (not shown in the graph). Chlorophyll a is used in both photosystems.The wavelength of light is also important. PSI absorbs energy most efficiently at 700 nm and PSII at 680 nm. Light with a higher proportion of energy concentrated in these wavelengths will produce a higher rate of photosynthesis. Carbon dioxide and rate of photosynthesis An increase in the carbon dioxide concentration increases the rate at which carbon is incorporated into carbohydrate in the light-independent reaction, and so the rate of photosynthesis generally increases until limited by another factor. As it is normally present in the atmosphere at very low concentrations (about 0. 4%), increasing carbon dioxide concentration causes a rapid rise in the rate of photosynthesis, which eventually plateaus when the maximum rate of fixation is reached. Rate of photosynthesis Carbon dioxide c oncentration 1 Temperature and rate of photosynthesis Although the light dependent reactions of photosynthesis are not affected by changes in temperature, the light independent reactions of photosynthesis are dependent on temperature. They are reactions catalysed by enzymes. As the enzymes approach their optimum temperatures the overall rate increases.It approximately doubles for every 10 Â °C increase in temperature. Above the optimum temperature the rate begins to decrease, as enzymes are denatured, until it stops. Limiting factors In 1905, when investigating the factors affecting the rate of photosynthesis, Blackmann formulated the Law of limiting factors. This states that the rate of a physiological process will be limited by the factor which is in shortest supply. Any change in the level of a limiting factor will affect the rate of reaction. For example, the amount of light will affect the rate of photosynthesis.If there is no light, there will be no photosynthesis. As light i ntensity increases, the rate of photosynthesis will increase as long as other factors are in adequate supply. As the rate increases, eventually another factor will come into short supply. The graph below shows the effect of low carbon dioxide concentration. It will eventually be insufficient to support a higher rate of photosynthesis, and increasing light intensity will have no effect, so the rate plateaus. Rate of photosynthesis Temperature Rate of photosynthesis Higher CO2 concentration; higher temperature.Higher CO2 concentration; lower temperature. Lower CO2 concentration; lower temperature. . Intensity of light If a higher concentration of carbon dioxide is supplied, light is again a limiting factor and a higher rate can be reached before the rate again plateaus. If carbon dioxide and light levels are high, but temperature is low, increasing temperature will have the greatest effect on reaching a higher rate of photosynthesis. Finding out How might the factors that affect the r ate of photosynthesis be investigated? Design a suitable series of experiments. 2

What You Must Know About Persuasive Essay Samples for Elementary Students

What You Must Know About Persuasive Essay Samples for Elementary Students New Ideas Into Persuasive Essay Samples for Elementary Students Never Before Revealed Ideaof school uniforms does not conserve family money and doesn't cover all requirements of children. Students shouldn't have to wear school uniforms due to the fact that they limit students' capacity to share their individuality. Many students think that it is a waste of time. Students and teachers can buy balanced lunch and drinks besides alcohol, that lets them feel nice and study much better. Students are accustomed to the fact which their professors give them with the assignment's topic. In general, they are asked to write assignments that take between half an hour and a whole hour. When most students regard essay writing as a dull and hard assignment, it isn't necessarily accurate. Elementary students have to compose expository essays from time to time. If you likewise do not understand how to handle your exp ository paper, you should acquire superior examples and use them for reference. It's the brilliant instance of persuasive writing! MLA and Chicago style formats are usually suggested for such an essay, seeing as they provide the very best material alignments, edges, headlines along with other paper elements. P.S. Keep in mind you are able to contact online academic writers to help in topic selection together with writing the entire paper from A to Z. The Importance of Persuasive Essay Samples for Elementary Students You may also acquire many discounts on our site which will help you to save some more money for future orders or anything you want to spend them on. Often it is essential to go beyond your own wisdom and experience. Students lead busy lives and frequently forget about an approaching deadline. Even a student can begin a business online. If you would like to figure out how to compose a decent persuasive essay, you're looking in the proper location! Another good id ea is to receive some totally free essay examples of different kinds and on various subjects to find a general idea of the way in which a prosperous debatable paper looks. But you wish to find everything written down so that you are able to refer to the outline whilst you're writing your rough draft. It really isn't the only format for writing an essay of course but it's a handy model for you to bear in mind especially as you start to develop your composition abilities. Thus, persuasive essay encompasses lots of requirements that ought to be upheld. An argumentative paper is part of the persuasion. If you're already on the lookout for persuasive essay examples online, you most likely have a somewhat vague idea on the best way to begin writing. A student ought to keep in contact with the hottest trends and know which persuasive essay topics are related to sound convincing in regards to defending personal opinions. It serves not just the requirements of many individuals to live, but also additional characteristics that will keep you to offer perfection. Consider something you truly feel strongly about--a space in which you'd love to see change--and see whether you can write an effective persuasive piece. Not allowing students to use tablets in class method to deprive them of something that is practically a portion of them and of their day-to-day lives. The best method to learn to write in. The Ultimate Persuasive Essay Samples for Elementary Students Trick Which is the reason why we here give you some persuasive essay samples that may aid you with your own. The 3 things your persuasive essay introduction should accomplish are the subsequent. There are a couple easy guidelines to follow as a way to be in a position to compose a very good persuasive essay. A fantastic persuasive essay example should show you your thesis statement should accomplish three things. There's, naturally, a limit on the range of pages even our finest writers can produce with a pressing deadline, but usually, we figure out how to satisfy all the clients seeking urgent assistance. If you can select the matter all on your own, it's possible to think of the issue of interest! Clearly, students experience little-to-none of such problems when using computers. The necessity to enforce laws that were introduced into action is vital in the event the authorities would like to have the gun control policies to have a result. Key Pieces of Persuasiv e Essay Samples for Elementary Students The introductory paragraph is perhaps the most essential paragraph in the essay since it's the very first and possibly last opportunity to produce an effect on the reader. Most academic essay topics usually ask you to select a side in an argument or maybe to defend a specific side against criticism. It attempts to persuade a reader to adopt a specific point of view or maybe to take a specific action. Don't neglect to bring a strong hook at the beginning (introduction paragraph) and wind up with an impressive conclusion to create the reader want to go over the interesting persuasive essay topics of your selection. Life After Persuasive Essay Samples for Elementary Students Persuasive writing can be challenging, especially whenever you're made to face with a close-minded audience. So, the best method to compose an amazing persuasive essay is to discover a theme you're familiarized with and would like to share your experience with the reade r. At exactly the same time, it's an excellent persuasive essay idea. Simply take the time now to read more on the topic of persuasive writing.

Stem Cell Research Ethics, Cloning And Curing The Disease

Lexie Kosanovic Honors English 3 13 Apr. 2016 Research Paper Outline Stem Cell Research - Ethics, Cloning and Curing the Disease Introduction According to former Speaker of the House, John Boehner, †Stem cell research must be carried out in an ethical manner in a way that respects the sanctity of human life.† In recent events, stem cell research has caught the attention of the nation and stirred up controversy about the research and ethics along with it. Ethically, stem cell research has caught more attention than the research behind it. Stem cell research is medically stable, but not ethically supportive to conservative groups, furthermore, stem cell research should continue to receive federal dollars for research, use research to seek out cures for potentially fatal diseases, and therapeutic cloning research should be studied in order to find cures for diseases. Cloning Cloning research is a concept misunderstood to the general public. As defined by Hug and Heremeren, both stem cell experts of the European Union’s Horizon, â€Å"Therapeutic cloning is a term used to describe the creation of stem cells for use in a medical treatment for a particular individual.† The ethical controversy mainly revolves around the idea of human embryos being taken through the stem cell research The process for therapeutic cloning is described by Hug and Hermeren as an adult animal cell being transferred into an egg with no nucleus. This embryo can grow and eventually beShow MoreRelated A Look at Stem Cell Research Essay1424 Words   |  6 PagesA Look at Stem Cell Research Research in the development of stem cells has become increasingly popular over the past decade. The fascination in the study of stem cells by scientists comes from the mystery of what the essential properties are and how cells differ. With the discovery of determining how stem cells are self renewing and identifying what causes stem cells to become specialized leads to the ability to create more cell-based remedies as well as preventing birth defects, more preciseRead MoreCloning : The Future Of Medicine And The Curing Of Diseases1427 Words   |  6 PagesCloning By: Joshua Weidner Cloning: is it the future of medicine and the curing of diseases or is it the beginning of an unholy tragedy? Cloning needs to be looked into for the fact it could help save many people s lives. Before I decided to study the subject I had no idea how much cloning could help us as the human race. Cloning is a very promising field of study and could hold the key to the future of what it means to be human. Almost everyone has come to believe that the first animal to beRead MoreHuman Embryonic Stem Cell Research1313 Words   |  6 PagesJessica Rogers Kendra Gallos English III Honors 18 April 2016 Human Embryonic Stem Cell Research Human Embryonic Stem Cell Research, or HES cell research, is a very controversial ethical debate. This issues is a dilemma for scientist, religious activist, and many more. HES cell research is being disputed because the practice is morally wrong. The other side of the issue stands with many scientist, being that they see the potential lives it could save in the long run. Religious activist, andRead MoreIs Human Cloning Legal? Essay1147 Words   |  5 PagesHuman cloning has not been legally used in humans because many people and experts are still discussing its effectiveness, worthiness and effect on humanity. Human cloning, also known as human genetic engineering, can be divided into two main types, which are therapeutic cloning, growing cloned tissue from individual, and reproductive cloning, genetically identical copy of an individual. Human cloning have drawn people’s attention because people are become more concerned about health problems andRead MoreEssay Problems wit h Embryonic Stem-Cell Research1416 Words   |  6 PagesRecently in the scientific world, the field of embryonic stem cell research has become a popular topic and has been the subject for many heated debates. Experts in the field of stem cell research promise that this will be the future of medicine; that stem cells will be the cure to all the debilitating diseases and afflictions of today, such as Alzheimer’s disease, heart disease, cancer and nerve damage. The truth about embryonic stem cell research is that it is not as hopeful and as revolutionary asRead MoreCloning Is The New Black2527 Words   |  11 PagesMichael Woodcock Professor Theis Research Paper 8 December, 2014 Cloning is the New Black Cloning could potentially allow advances in science that will benefit society as a whole. Cloning of both humans and animals can help advancements in curing a variety of diseases. Those who oppose this proposition believe it is morally and ethically wrong. Proponents for cloning animals know that it can allow for a healthier lifestyle and help maximize production numbers, while opponents think that the technologiesRead MoreThe Issue Of Stem Cell Research1675 Words   |  7 Pageswas science fiction has become today s science reality. In this age, one can replicate many types of specific cells, such as blood, brain, tissue or muscle cells from a single stem cell. These stem cells, in theory can be used to heal or replace damage cells in our bodies thus curing us of certain diseases. These stem cells are the basic cells to develop any type of organism and its research is not allowed without incredible controversy. As one might imagine, such potential power has been seen as unethicalRe ad MoreThe Importance of Stem Cell Research Essay1649 Words   |  7 PagesFatal diseases have been the cause of death for a large percent of the human race. About 5.8 million Americans have heart failure, 670,000 people are diagnosed with it each year, 23.6 million have diabetes, and one million live with Parkinson’s disease (Watson, Stephanie, and Craig Freudenrich, Ph.D). Diseases such as above kill off important cells that reproduce rapidly to help the body function normally. Well, what alternatives does one have to turn to when the time clock runs out for all cellsRead MoreStem Cells : Pros And Cons913 Words   |  4 PagesJoshua Thomas Arndt 4th Stem Cells: Pros and Cons When talking about stem cell research, there are many differing opinions. This has been a hot topic for debate over the last several years. It boils down to ethics. Does sacrificing the life of a potential person justify saving another person s life with a fatal disease or illness? To many, the answer is yes. However, for others, the answer is no. Those in favor argue that these cells could possibly help to cure diseases like Parkinson s, AlzheimerRead MoreStem Research On Stem Cell Research1530 Words   |  7 PagesHiga Capstone 2 October, 2014 Stem Cell Beats Ethic Issues Stem cell research is the most controversial topic in the health field since abortion. Stem cell research however, has the potential to unlock an infinite amount of possibilities as well be the key to curing patients with terminal illnesses. Many people from around the world have their opinions on this type of research dealing with ethics, politics, and religion. The most efficient way to study stem cells is taking them from donated embryos

Graduation Speech High School - 849 Words

In the spring of 2014, I graduated as valedictorian from Klukwan High School located in the Panhandle of Alaska. During my high school career, I maintained status on the high honor roll and received the title of Student of the Month the first month of every school year for four years. In 2011 and 2012, I was selected to attend the Youth Leadership Institute in Anchorage as a student delegate for the Chatham School District. There, I met other high school students from all over Alaska. We spent our time at the conference exercising our newfound leadership skills in fun icebreaker games and group activities. We also learned about our own unique leadership styles, and how we can apply them to various situations back home or anywhere. In the fall of 2014, I was accepted to the University of Alaska Southeast in Juneau as a full-time student. Before saying my goodbyes to my hometown, I reflected on just how attached to the community I had become. Since my first year at Klukwan School, my K-12 classmates and I often spent our time participating in community events within our village such as Moose Camp or beautifying the Community Garden. Every year on Earth Day, my class and I organized ourselves into groups, set-up routes, and initiated our annual Village Clean-Up. While Village Clean-Up always concluded with a delightful barbeque, our favorite event was always Culture Days. Culture Days consisted of inviting other schools and community members to participate in a week full of funShow MoreRelatedGraduation Speech : High School934 Words   |  4 Pageslife would be graduation. For many people, graduating from high school is an objective. It takes a lot of time, effort, and determination to accomplish that goal. For others graduation is the end of high school, and the beginning of a new chapter in life. When graduated people feel as if adulthood has begun. In the long run, graduating opens a lot of opportunities for people to thrive. I can almost reminisce the day as if it was yesterday. I was sitting in bed like any other school day. It seemedRead MoreGraduation Speech : High School852 Words   |  4 PagesAccording to a report from Thomas Nelson Community College website, 15.7 percent is the graduation rate in 2010. 84 percent of students failed to receive their degree. That’s beyond sad. College can be difficulty especially with everyday life is getting harder to main family life work and financials. Because college is challenging, I know that I have issues that I must overcome. I told myself the more patient s I have the better success I will have. Although college will be difficult my goal isRead MoreGraduation Speech : High School Essay2254 Words   |  10 Pages The day I graduated from high school The High school graduation day is a life full of journeys for everyone, high school life is a memorable time for most people, for me as well. High school can be filled with lots of good memories for some people and it could be filled with bad memories, for me it was both I had good times and I had bad times. The High school Graduation day should definitely be the best day of your life because that means no more high school, no more having to wake up at 6Read MoreGraduation Speech : High School Graduation854 Words   |  4 Pagesfail High School graduation can be an exciting time in a student’s life. It is a time in their lives where they begin to experience the kind of freedom that comes along with growing up. This freedom allows students to choose the type of college or University they would like to attend. It is necessary that they understand how responsible they need to be with the freedom that is being offered to them. When choosing what college or university to attend it may be tempting to want to go to a school thatRead MoreGraduation Speech : High School Graduation1507 Words   |  7 PagesForest English 1010 9/9/2014 Graduation During our lives, most of us have hated getting up early. Whether we as humans enjoy mornings or not, we’re always looking forward to that unforgettable day. That special is high school graduation for me. Graduation is a ceremony that recognizes students that have excelled through school. Graduation was one of the best days of my life, perhaps even better than the day that I started college. There is no other day like graduation where there comes this feelingRead MoreGraduation Speech : High School Graduation933 Words   |  4 PagesHigh School Graduation With regards to high school graduation, Balfanz, Herzog, and Iver (2007) followed 12,972 Philadelphia students enrolled in traditional middle schools from six grade (1996-1997) until 1 year beyond their expected graduation from high school (2003-2004) in order to understand what indicators would affect their projected graduation date. Unlike many of the early K-8 schools, the population Balfanz et al followed consisted of 64% African American, 19% White, 12% Hispanic,Read MoreGraduation Speech On High School Graduation851 Words   |  4 PagesThere Is No Success Without The Opportunity to Fail High School graduation can be an exciting time in a student’s life. It is a time when they begin to experience the kind of freedom that comes along with growing up. This freedom allows students to choose the type of college or University they would like to attend. It is necessary that they understand how responsible they need to be with the freedom that is being offered to them. When choosing what college or university they would like toRead MoreGraduation Speech : High School997 Words   |  4 Pagesup, I loved going to school and dreamed of one day attending college. Attending school every day and receiving good grades had become my top priority from K-12. I excelled from K-8th grade, but entering into high school was completely different than primary school. The atmosphere and environment was new to me, I was free to roam the halls or walk back out the door without any repercussions. This began my downward spiral in high school. My freshman year was by far the best school year for me becauseRead MoreGraduation Speech : High School897 Words   |  4 PagesHigh school was one of the most challenging moments in my life. Not only did I have to deal with the academic pressures and social issues from my peers I had external factors that were heavily impacting me as well. During my junior year my mom separated from her husband and me and my three little brothe rs ended up staying house to house with close relatives. Shortly after that time at the beginning of my senior year, my mom was sent to prison. In the midst of dealing with all of the demands thatRead MoreGraduation Speech : High School Essay1434 Words   |  6 PagesWhen I was in high school I had one goal, I would graduate top of my class and go to the University of Florida for pre-medicine, then onto their medical school. I never considered that I would want anything else, so I went to a specialty high school that would allow me to specialize in Biomedical sciences(STEM) and never even thought about the possibility of a life other than the one I had so precisely planned out for myself. When my nephews were born my sophomore year all of my priorities changed

Questions on Short-Term Finance Free Essays

What can managers do to control the cash cycle? What are the tradeoffs In shortening the cash cycle? Know how to calculate: Elements of the cash cycle and the operating cycle Managing the Working Capital Cycle (Chi. L) For what aspects of working capital does financial management have responsibility? What are the two key areas of working capital policy set by financial management? What are the objectives In setting working capital asset policy? What Is the difference between temporary current assets and permanent current assets? In what ways can working capital assets be balanced? What is spontaneous financing of working capital assets? How is the amount to be used determined? What should be considered in choosing between short-term and permanent financing sources for funding working capital assets? What are the tradeoffs? How can the lifetime of assets be matched to the maturity of funding sources (I. E. We will write a custom essay sample on Questions on Short-Term Finance or any similar topic only for you Order Now , what Is a restrictive working capital financing strategy)? How can working capital assets be financed more flexibly than with a restrictive strategy? How can they be financed more aggressively? Cash Management (Chi. L Chi. 2) What is the focus of short-term financial planning? What are the steps of the short-term financial planning process? How are cash collections forecast? How are cash disbursements forecast? What are the elements of a typical cash budget? Why is short-term debt appropriate for covering short-term cash deficits? What are the typical sources of short-term funds? What Is a line of credit? What are the tradeoffs in cash? What is â€Å"cash†? How are borrowing reserves and marketable securities like cash? What is float? What types of float exist? Why do we care about float? How do we deal with float? What tools can we use to manage float? What is a locker arrangement? How do we compare costs and benefits of a locker? How does using a locker help us to manage risk? Elements of a cash budget Float time, float balances; Costs and benefits of lockers Credit and Inventory Management Managing Accounts Receivable/Setting Credit Policy (Chi. 3) What are the elements of a receivables management program? What are the components of a credit policy? What are the tradeoffs in setting credit policy terms? How does competition affect the optimization of credit policy terms? How can a vendor have a lending cost advantage over other banks and finance companies? Why might a vendor be able to charge a higher price for goods and services by offering reedit? When might a vendor find it necessary to offer credit in order to establish reputation? What are the advantages/disadvantages of open account billing over invoice billing? What factors affect the ideal credit period? What factors determine whether or not credit (early payment) discounts should be offered? What are the five Co’s of credit? What tools are used to monitor receivables? How is the impersonal nature of collection agencies both good and bad? In what forms can credit be offered to customers? How does a firm offering credit to customers finance its own receivables? What is acting of receivables? What are the advantages/disadvantages of factoring? What elements of a credit policy decision can be quantified? How may a change in credit policy affect the costs associated with inventories? How may a change in credit policy affect the costs associated with receivables? In what two ways can projected bad debt losses be affected by a change in credit policy? What are the costs/benefits of offering discounts? Annual percentage costs of credit discounts Costs, benefits, and net benefit of a change in credit policy Break-even probabilities and percentages for a change in credit policy How to cite Questions on Short-Term Finance, Papers

The World of Doublespeak Essay Sample free essay sample

â€Å"The World of Doublespeak† from the book English 121 Readings was written by William Lutz. This essay defines what doublespeak is and gives illustrations of types of doublespeak. Lutz besides explains why doublespeak is non an effectual signifier of communicating. Lutz defines doublespeak as â€Å"†¦language that pretends to pass on but truly doesn’t. It is linguistic communication that makes the bad seem good. the negative appear positive. the unpleasant appear attractive or at least tolerable. † He states that when doublespeak is used. it may look so existent that you may non even acknowledge it as doublespeak. When listening or reading he encourages inquiring simple who. what and why inquiries about what is being said. If you are unable to reply the inquiries. it is likely doublespeak is being used. In the essay. Lutz states that there are four sort of doublespeak and gives definitions and illustrations of each. The first is the euphemism. We will write a custom essay sample on The World of Doublespeak Essay Sample or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The intent of the euphemism is to utilize words to mask the true significance of what is being said. A euphemism is frequently used to avoid aching the feelings of another although it may besides be used to cover up rough facts or content. The 2nd illustration of doublespeak is slang. Jargon is linguistic communication that is peculiar to certain professions such as physicians and attorneies. To person non associated with the specific group and their linguistic communication. slang will non do sense. It is frequently used by persons who wish to sound more intelligent or of import. Gobbledygook is the 3rd sort of doublespeak described by Lutz. This type of doublespeak uses large words and long sentences to confound the audience. The last type of doublespeak described is hyperbolic linguistic communication. It is linguistic communication that makes simple things seem more complicated than they are. Throughout the essay the writer states his grounds why he believes doublespeak is so awful. His primary ground is that because this linguistic communication is frequently fallacious. it is capable of â€Å"corrupting idea. † If our ideas are corrupted and we believe merely what we hear through doublespeak our world may be non what we believe it to be.

The Aztec Indians, Who Are Known For Their Essays - Aztec Gods

The Aztec Indians, who are known for their domination of southern and central Mexico, ruled between the 14th and 16th centuries. Their name is derived from Azatlan, the homeland of the north. The Aztecs also call themselves Mexica and there language came from the Nahuatlan branch of the Uto-Aztecan family. The Aztecs were formed after the Toltec civilization occurred when hundreds of civilians came towards Lake texcoco. Late families were unfortunate and were forced to go to the swamp lands. In the swamp lands there was only one piece of land to farm on and it was totally surrounded by more marshes . The Aztec families some how converted these disadvantages to a might empire known as they Aztec Empire. People say the empire was partially formed by a deeply believed legend. As the the legend went it said that Aztec people would create a empire on in a swampy place where they would see an eagle eating a snake while perched on a cactus which is growing out of a rock in the swamplands. This is what priests claimed they saw while entering the new land. By the year 1325 Their capital city was finished. They called it Tenochtitlan. In the the capital city aqueducts (piping) were constructed, bridges were built, and chinapas were made. Chinapas were little islands formed by pilled up mud. On these chinapas Aztecs grew corn, beans, chili peppers, squash, tomatoes, and tobacco. Tenochtitlan (the capital city) was covered in giant religious statues in order to pay their respects to the gods. In the Aztec religion numerous gods controlled an Aztecs daily life. Some of these gods include: Uitzilpochtli (the sun god), Coyolxauhqui (the moon goddess), Tlaloc (the rain god), and Quetzalcoatl (the inventor of the calendar and writing). Another part of the Aztec religion was human sacrifices. For their sacrifices the priest would lay the man or woman over a convex (rounded) stone, then he would take a sharp knife and cut the victims heart out. They did this because they believed that good gods could prevent bad gods from doing evil things and they also believed that good gods got their strength from human blood and hearts so they had sacrifices in order to keep their gods strong. For major rituals warriors were sacrificed, for the warrior this was one of the greatest honors and for minor rituals prisoners were used. In an Aztec marriage the grooms shirt is tied to the brides dress in order to express there bonding and after the wedding incents were burned for 4 days before proceeding with the marriage. In 1519 Hernando Cortes, a Spanish explorer, led over 500 men into Aztec territory to search for gold. Aztecs thought he was a representative for a certain white skinned god so they respected him. It all changed when the Aztecs saw that Hernando was melting down their golden statues and shipping them back to Spain. The Aztecs decided to attack Hernando and his men. The Aztecs were successful and drove the Spanish away. In 1520 the Spanish attacked the Aztecs capital city and destroyed their civilization. That was the end of the Aztecs mighty empire had built so long ago. Work Cited 1) Aztec Indians. Young Students Learning Library. 1993 2) Encarta 96. CD-ROM. U.S. Microsoft, 1996.