Biology Key Questions Essay - 675 Words

Biology Key Questions – Lesson #1 1. How many electrons does Mg2+ have? Answer: Mg2+ has 10 electrons. A Magnesium atom has 12 electrons, 2 of which are valence electrons. The atom will lose the 2 outermost electrons in order to stabilize its electron shell. The nucleus maintains its 12 protons and becomes a Mg2+ ion. 2. Given that the half-life of the radioisotope carbon-14 is 5730 years, how useful do you think this isotope would be for dating bones that are over a million years old? Answer: Carbon-14 is incorporated in the tissues of plants and animals through their environment. When they die the incorporation of carbon-14 ends, and what remains in the specimen decays at a constant rate, with a half-life of†¦show more content†¦When the two smaller reactants join together, water is produced and removed during the synthesis of the larger molecule. This is also called Dehydration Synthesis. For example, molecules with projecting Hydrogen atoms bond with molecules with projecting Hydroxyl groups (-OH), forming water. The water molecule then leaves the reactants, allowing them to bond to form a larger, more complex molecule. This type of reaction occurs continuously throughout the body in the joining of amino acids to form protein. Amino acid + Amino acid ïÆ'   Protein + Water Oxidation and Reduction (Redox) A chemical reaction involving the transfer of electrons rather than molecules is classified as a Redox reaction. A reaction involving the loss of electrons is called Oxidation, and a reaction involving the gain of electrons is called Reduction. Oxidation and Reduction always occur together, as one reactant loses electrons, and the other gains them. This exchange often effects the physical states of molecules, as their solubility is changed with their charge. *Zn(s) + Cu2+ ïÆ'   Cu(s) + Zn2+(aq) Cellular respiration is a redox reaction that combines glucose oxygen to produce carbon dioxide, water, and energy. Neutralization: Neutralization reactions are those that involve the reaction of an acid and a base to form water and salt. A solution with a high hydrogen ion concentration is acidic, and a solution with a high concentration of hydroxide ions isShow MoreRelatedUnit 1 Lesson 1 Key Question Biology SBI4U Essay1283 Words   |  6 Pagesï » ¿Unit 1 Lesson 1 Key Question Biology SBI4U-C ILC 1) Mg2+ Has 10 electrons. 2) Carbon -14 would not be effective at dating bones that are millions of years old. Carbon -14 is effective at dating to a maximum of 40 000 to 50 000 years old. The isotope decays over time and would not be present on bones that are millions of years old. 3) Hydrolysis - Water used to breakdown molecules. Hydro means water and lysis means to breakdown. An example of hydrolysis in action within our bodies is how ourRead MoreWhy I Am Interested Of Taking The Chromatin, Epigenetics, And Gene Expression Course995 Words   |  4 PagesChromatin, Epigenetics, and Gene Expression course. I have always had a lifelong thirst for knowledge. As a child I was always asking questions about why or how things worked. I would always tinker with things, taking them apart and reassembling them. I questioned pretty much everything and longed to be able to do experiments and find solutions to unanswered questions on my own. In high school, I volunteered, participated in athletics, held leadership roles in several clubs, and also worked part-timeRead MoreThe Research Methods Of Internet Articles1554 Words   |  7 PagesThere were four research methods that were used in this research question. The use of internet articles, email interview, library books and visits to the museum. Out of all those research methods, the most effective was the internet articles and the visits to the SA museum. In this evaluation the four research methods will be discussed in details along with their pros and cons. Internet articles were one of the main research methods, and it was chosen because using search engines such as googleRead MoreBiology : Evolution, Energy, Information, And Systems1436 Words   |  6 PagesBiology, the study of life and living organisms, is complex and encompasses a multitude of theories and ideas. In AP Biology, the fourth unit covered was genetics. Chapters 11, 12, 13, 14, 15, 16, and 18 in the textbook, Campbell’s Biology in Focus, not only discusses the four main ideas of biology: evolution, energy, information, and systems, but it also gives examples of each in order to help guide the reader’s understanding of the concepts. The first big idea of AP Biology is: â€Å"the processRead MoreReflection On Metacognition799 Words   |  4 Pagestime for friends and family, this song has given me motivation like no other. There were MANY times where Ive felt unmotivated and this song has lifted me right back up. In particular, I took this class without having too much of a background in biology. However, I needed to take this class as a pre-requisite for medical school. And it was important that I thoroughly understand all the content in order to succeed in this class as well as in medical school. The textbook itself looked daunting whenRead MoreImportance Of Cell Biology1122 Words   |  5 Pagesruns the gamut of activities expected in a cell biology lab: feeding, passaging, expanding, and freezing cell strains grown in our lab; FACS sorting cells based on lineage specific surface markers; immunofluorescence imaging; gene expression analysis. As a research associate, I also make stock solutions and provide support for the staff scientists, post-docs, and graduate students that work in the lab. I work to help them find the answers to the questions they wish to ask about the biological systemRead More Daniel Dennetts Darwins Dangerous Idea: Evolution and the Meanings of Life1022 Words   |à ‚  5 Pagesinferior, it just happened that way because of social circumstances. It has nothing to do with biology. So what! Science here offers no ethical insight; it only prompts indifference. Even if Darwinism is no justification for social injustice, it does nothing to suggest that there is an urgent need for social change. At worst, if one does not take away from this a warning not to mix ideas about society and biology lightly, it might lead one to think that social circumstances are just another random differenceRead MoreThe Role Of The Circulatory Systems And Defense Systems1712 Words   |  7 Pages1. Relation to the Alberta Program of Studies. Unit D: Human Systems in Biology 20 is one of the main sections that becomes relatable to the Program of Studies (POS) for the Heart Rate and Exercise LabQuest activity. General Outcome #2 focuses on how students will explain the role of the circulatory systems and defense systems in maintaining an internal equilibrium. This further goes into measuring the students level of understanding the concepts of heart rate and the factors that affect it (AlbertaRead MoreDevelopmental Psychology : Psychology And Psychology943 Words   |  4 Pagescurrent major in biology are Developmental Psychology, Neurological Psychology, and Clinical Psychology; they have influenced me by Developmental Psychology relating to my future goal to work with pediatrics, Neurological Psychology relating to both biology in a general sense and also my potential interests in the neurology field, and Clinical Psychology relating to being a doctor in general. One of the fields of Psychology that has influenced me and my current major of biology is developmentalRead MorePsychological Perspectives Of Human Behavior1542 Words   |  7 PagesThey will also be criticised and compared to one another. A brief description on psychology will occur, and there will also be a short summarisation on some key early influences of psychology, from its origins in philosophy. Psychology is a scientific application of behaviourism. It evolved from three key areas of research, philosophy, biology and physics. In 1879 a man named Wilhelm Wundt created the first laboratory with the sole purpose of researching psychological matters, during this time psychology

Rag Pickers in India Free Essays

Sustainability of Human Rights with Special Reference to Child Rights: A Case Study of Rag Pickers in Cuttack City Abstract Dillip Kumar Mallik The discourse on rights is evolving with time. The rights of the Rag Pickers as part of the broad rights discourse have assumed significance in contemporary times. My Ph. We will write a custom essay sample on Rag Pickers in India or any similar topic only for you Order Now D research is located within the rights framework. Rag Pickers are those children we can find out them in railway station, municipality areas, bus stand, industries areas, garbage and household areas with having a heavy gunny bags and collected and sorted: plastic, paper, bottles, bones and metals. Diferent plans outlined by Government Agencies have rolled out government has taken lot of initiative for empowering the childhood. For example, policies like Sarva Shiksha Abhiyan, the free mid-day meal programme and many others have been there for a long tyime. But the question is if they are successful, then why there is early drop out of students and more significantly, why children belonging to poor sections in urban areas have turned into rag pickers. The metro cities have the largest number of rag pickers in the country. It would be difficult to ascribe any particular caste or any other form of identities to these children. The central question of this research is whether Government policies are inadequate to respond the needs and requirements of this group of children. Along with this central question the study also looks at other related questions. Whether the rag pickers belong to marginalised groups? Do these rag pickers constitute a majority of school drop outs? The research revolves round these questions. Some of the key objectives of the research are 1) to study and understand the socio-economic condition of the rag pickers, Second is To know the impact of the rag pickers on the society, Third, to provide proper education as well as health awareness for the children. Fourth, to make assessment the changing behavioural pattern of the children of rag pickers, and finally To improve the nutritional health status of children. The researcher choose Cuttack district of Odisha will the area of study because it is one of the oldest cities, better known as the Business Capital of Orissa. The study was concentrated slums, railway stations, medical, municipality area and most important industrial estates where these children were picking more rag. In the present study the researcher employed interview schedule and group discussion as the tools for data collection. Both primary and secondary sources of data will employ for this research. The primary data are collected from the respondents of Cuttack district of Orissa. The secondary data are based on books, journal, article, guides, magazine, newspaper, and statistical report, published and unpublished document and mostly from internet sources. In the present study the researcher will employ two types of method for data analysis: qualitative and quantitative. Both the methods are correlated with each other, though qualitative method is little prior than quantitative methods. Qualitative method is a raw material for any type research, by which we know the details about the theoretical aspect, but by using of quantitative method we would able to manipulate and evaluate the statistical analysis of the data through the helps of advanced computing package like SPSS. How to cite Rag Pickers in India, Papers

A Fiery Grave The dropping of the Atomic Bomb Essay Example For Students

A Fiery Grave The dropping of the Atomic Bomb Essay The atomic bomb was developed in numerous places, however the bulk of it was created in Los Alomos. Los Alomos is a small town in New Mexico. Before the research began, there stood a small all-boys Catholic school. After months of low flying planes, armed marine surveillance and many interrogations about the area, the school received a notice that said the school would be knocked down for government use. Two months after the destruction of the school, there stood a huge top-secret research facility that no one was quite sure what it used for where a small school had once been. The facility was so secretive, there was a sign posted outside that said What you see here, What you do here, What you hear here, Let it stay here. (Wheeler 24) Another research facility that played a major role in the production of the atomic bomb was a large lab in Manhattan where the Manhattan Project took place. Here they tested the power of Uranium and Plutonium. With this research, they could plan out the effectiveness of the bomb used in Hiroshima. Without the Manhattan Project, the U.S would have no clue about the power of Plutonium and Uranium. The researchers and scientists worked day in and day out trying to successfully harness nuclear energy. Albert Einstein helped with the Manhattan Project by using his theory that E=MC2 also proved to be helpful in the development of the atom bomb. To test the power of an atomic explosion, the United States Government came up with explosive devices that were equal to the power of the atomic bomb. These tests were some of the best kept secrets of World War II. The first experiment was a test in which scientists would drop Uranium slugs into piles of radioactive materials. When a pure Uranium hits radioactive material it could very easily cause a nuclear explosion. This project was so dangerous, they called it Tickling the dragons tail. Another test to determine the power of the atomic bomb was a test that involved over fifty tons of T.N.T, a highly explosive material. The plan for this experiment was to take the T.N. T out to the middle of the desert and detonate it. When they put the T.N.T into the crates, they added plutonium rods so they could see the effects of a radioactive fallout. When they detonated the bomb, it was easily seen over sixty miles away. The entire time these tests were going on, the Germans were trying to unlock the key to atomic energy. The United States was aware of the situation so they sent spies to Germany. These spies missions were to watch German nuclear advancements and then report their findings back to the United States. Moe Berg was a famous catcher for the New York Yankees during the time of nuclear developments in the United States. What his fans didnt know was that he was also a nuclear spy sent to Germany to spy on Germanys nuclear advancements. His mission was to go to Edward Heisbergs, a German nuclear physicist, lecture on nuclear energy. If Heisberg even hinted he knew anything about the United states development of atomic bombs, Berg was to kill him. Berg attended the lecture. Luckily Heisberg never mentioned anything about American nuclear bombs. No one knew about Bergs secret life until it was declassified long after the war had ended. The plans for the dropping of the atomic bomb were very complex. The United States had come up with six different locations for the dropping of the atomic bomb. These locations were: The Kokura Arsenal- a large port city that produced most of Japans planes. .ud4d8b1a5481210827ff6defe6b76680c , .ud4d8b1a5481210827ff6defe6b76680c .postImageUrl , .ud4d8b1a5481210827ff6defe6b76680c .centered-text-area { min-height: 80px; position: relative; } .ud4d8b1a5481210827ff6defe6b76680c , .ud4d8b1a5481210827ff6defe6b76680c:hover , .ud4d8b1a5481210827ff6defe6b76680c:visited , .ud4d8b1a5481210827ff6defe6b76680c:active { border:0!important; } .ud4d8b1a5481210827ff6defe6b76680c .clearfix:after { content: ""; display: table; clear: both; } .ud4d8b1a5481210827ff6defe6b76680c { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .ud4d8b1a5481210827ff6defe6b76680c:active , .ud4d8b1a5481210827ff6defe6b76680c:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .ud4d8b1a5481210827ff6defe6b76680c .centered-text-area { width: 100%; position: relative ; } .ud4d8b1a5481210827ff6defe6b76680c .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .ud4d8b1a5481210827ff6defe6b76680c .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .ud4d8b1a5481210827ff6defe6b76680c .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .ud4d8b1a5481210827ff6defe6b76680c:hover .ctaButton { background-color: #34495E!important; } .ud4d8b1a5481210827ff6defe6b76680c .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .ud4d8b1a5481210827ff6defe6b76680c .ud4d8b1a5481210827ff6defe6b76680c-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .ud4d8b1a5481210827ff6defe6b76680c:after { content: ""; display: block; clear: both; } READ: Gender Equality In Sports Essay Nigiita- a city that had a very large population and would contain radiation well. Hiroshima- A large city in which Japanese ships were made Emperors palace- This was an alternative that would only be used to show the aggressiveness and superiority of the United States. It was in a bad location that would not hold radiation well. Nagasaki- This was a port city that produced artillery. It had a large population and held radiation well. Kyoto- It had a large population and .

Health benefit costs

It is important for employers to eliminate the benefits drawn by retirees to maintain the benefits of current employees. A number of companies are taking into consideration the changes they are likely to experience as a result of increasing health care costs and the dire economic situation.Advertising We will write a custom essay sample on Health benefit costs specifically for you for only $16.05 $11/page Learn More Employers are therefore looking for the most effective ways to reduce such costs (C C H, Incorporated 2003). Elimination of benefits for retirees is a sure way of reducing the costs incurred by an organization, such elimination should be directed to the retirees due to their diminishing role within an organization and their financial position that come about as a result of accumulation of funds during the period of employment. Retirees also draw benefits from organizations that carry out social work. Current employees do not enjoy such a feat . It is however important to reinstate that the reason for the elimination of retirees benefits is the amount of contribution drawn over time that is higher than that of current employees thus a need for employers to create a balance. Employees should be charged more for health benefits as opposed to reducing their contribution to pensions. The reason is that pensions is a mode of saving that caters for the needs of such employees upon retirement while costs incurred as a result of health are termed as recurrent. It is unwise to feel comfortable meeting the health needs which will always form a part of an employee’s life. Pension benefits do not conform to such an ideology. It is worth noting that public employees pay a small percentage of their pension’s costs. This is usually a third or less of the total cost. According to experts this contribution is quite low. It is actually less than 30% of the total cost of the annual pensions plan stated contributions. This mean s reducing the contributions to pension will impact minimally on the overall costs incurred by an employer. In an effort to improve employee satisfaction, it is necessary to study and analyze their expectations especially in terms of finances and motivation. This lays the ground work for initiating corrective measures in case something is a miss. It is inappropriate for employers to reduce employee’s incentives during tough economic times. This only serves to reduce employee loyalty and morale. Employers therefore need to provide channels for employees to voice their concerns in case such an activity is taking place; this is an important way to propagate job satisfaction. The bottom line is that the benefits drawn by employees should not be reduced (Lundy Janes 2009).Advertising Looking for essay on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More After taking into consideration the above mentioned concepts. An emp loyer should create a strategic plan in an effort to balance between the needs of the employees and their own needs. It is through employers performing their duties efficiently that employees can pick up the trend. These duties include provision of benefits appropriately. Employers can therefore take advantage of new tools related to electronic planning and offer benefits which are timely and accurate. Strategic plans are useful in providing controlled budgets. An employer can achieve such a feat by evaluating the present benefit plans, identification of the goals and objectives of the company, determining strategies that relate to the culture of the company, coordinating the benefit strategies in reference to human resource programs, designing a communication plan and establishing a budget that fully supports this plan. This will be useful in ensuring that employees receive their benefits as planned thus increasing the levels of satisfaction (Lundy Janes 2009). References C C H, I ncorporated. (2003). United States master employee benefits guide. Los Angeles, CA: CCH Incorporated. Lundy, S. Janes, S. (2009). Community Health Nursing: Caring for the Public’s Health. New York: Jones Bartlett Publishers. Sims, R. (2002). Organizational success through effective human resources management. New York: Greenwood Publishing Group. This essay on Health benefit costs was written and submitted by user Ciara W. to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

vector lab essays

vector lab essays The apparatus used in this lab is a circular table with degree marks around the edge. There are three pulleys attached to the table. Weight hangers are attached to a central ring with string and run over the pulleys. The central ring is centered around a central pin. 100cos30= 86.6=x-component 100+86.6=186.6=x 100sin30=50=y-component 173.21+50=223.21=y 200sin60=173.21=y-component =50.10+180=230.10 150cos45=106.07=x-component 106.07+-173.205=-67.135 150sin45=106.07=y-component 106.07+-100=6.07 200cos210=-173.205=x-component C=67.4085 200sin210=-100=y-component =-5.16245 100cos20=93.9643=x-component 93.9643+-76.6044=17.3599 100sin20=34.202=y-component 34.202+64.2788=98.4808 100cos140=-76.6044=x-component C=99.999 100sin140=64.2788=y-component =80.003+180=260.003 With this lab we were able to estimate the magnitude and direction of the resultant vector. We then used vector addition to find the magnitude and direction and compared the findings. Our estimates and calculations were very close. The experiment helped us to better understand vectors and their properties. We used trigonometric equations to find the x and y components of the given vectors. y-component=magnitudesin x-component=magnitudecos We then used vector addition to find the x and y components of the resultant vector. With the x and y components we used the equation magnitude ²=(x-component) ²+(y-component) ² to find the magnitude of the vector and the equation ...

The Goal novel - Supply Chain Managment Essay Example | Topics and Well Written Essays - 250 words

The Goal novel - Supply Chain Managment - Essay Example The other way is to identify the hidden capacity within the plant be it in the machineries or the workers and utilize them. Alex identified that the goal of the plant and which he has to attain is to make money (Goldratt & Cox 46). In order to meet his goal, he will need anything that will bring him closer to attain it that is anything productive and identify all the bottlenecks preventing the attainment of the goal and do away with them. Managerial decision making is not an easy chore and it requires patience and a lot of team work. The manager also needs to seek advice from those with experience and try an all rounded approach for better results. Jonah was giving advice that was far too difficult and technical for Alex and it made him work even harder to figure it out, run the plant in the meanwhile and all these at the expense of his family. The more time he took to figure out Jonah’s advice, the more time his personal life

Write a 500 word Market Research Brief from behalf of a company of Essay

Write a 500 word Market Research Brief from behalf of a company of your choice. The brief can be developed on any kind of problem the company has or may have - Essay Example He is known to push people to accomplish goals and objectives more than they thought they could achieve. He also stretched the possibilities of hardware and software design that yielded revolutionary products of which we enjoy today that often drove his people nuts(time). He was known to become rude, [slave driver at times], unreasonable, fickle, arrogant and even took credit for other’s ideas. But despite these seeming weaknesses, Job’s leadership have undeniably drove the company from near bankruptcy to become one of the most envied companies in the world. This management style of Steve Jobs however is no longer emphasized in the present leadership of Apple. Being such, Apple is bound to have problems without a leadership that is driven to innovate because such leadership and organizational discipline that was instilled by Steve Jobs was the main factor that drove the company to excellence that produced radical innovation. Its new CEO Tim Cook did not have the same drive towards excellence nor have the genius of Jobs to think of revolutionary products that would shake the industry. And due to this shortcoming, he is more predisposed towards what he calls as â€Å"incrementalism† which is essentially just to make things better what Steve Jobs already did. And this new leadership is dangerous to the company because it is one of the management traps that lead a company into a downfall. This is the management leadership trap that Robert Schaeffer articulated in the article â€Å"Mistakes Leaders Keep Making† of failing to pu sh for significant improvement for fear that people are already overwhelmed (2010). As a result, Apple is no longer growing and its former competitive edge of being radically innovative is no longer there. In an industry where change happens at a dizzying pace and products become obsolete overnight, doing the same thing even better is problematic because it