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    A Tour of the Cell

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    Chapter 6: A Tour of the Cell Cell fractionation – cells are taken apart using a centrifuge (differential centrifugation) and separated into their sub cellular structures Point of Difference | Eukaryotic | Prokaryotic | Shape/Size | Larger | Smaller | Complexity | Membrane bounded organelles | No membrane bound organelles | Nucleus | Bounded membrane with DNA | DNA in a region (nucleoid) | Kingdom | Plants‚ animals‚ fungi‚ protists | Bacteria and archaea | Reproduction | Sexual reproduction

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    Alcohol vs drugs

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    Ludvigsen September 5‚ 2012 Running Ahead: Alcohol vs. Drugs Alcohol vs. Drugs This essay is about the use of alcohol and/or drugs that can be harmful and deadly to an individual. Alcohol can be used for different reasons‚ like for a special occasion or you can be on a casual date‚ but it can also be used for depression in which most cases people abuse it by going over the limit. People who abuse alcohol use it to cover up personal problems that have occurred in their

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    Alcohol Vs Marijuana

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    The cannabis us found to be a less harmful substitute for alcohol. It is safer than the spiritual drinks. Unlike cannabis‚ there is no known medical use for consumed alcohol. No subtantial evidence relates the weeds to domestic violence‚ severe crimes and traffic accidents‚ yet the hashish trade is illegal. Meanwhile‚ alcohol remains legal despite the fact that it has contributed to many social ills‚ including car accidents and horrible crimes. Statistics from the red cross show that the number of

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    Cell Phones

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    The Dangers of Cell Phones Our community has increased greatly in technology during the past 20-30 years. Cell phones have given us more freedom and have also given us more freedom and have also given us the ability to communicate with anyone we want at anytime we choose. Cell phones‚ to some‚ are the greatest things invented to mankind‚ but every single thing must have a negative side. What is the negative side of cell phones? Cell phones are a horrible distraction‚ they are said to cause cancer

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    Solar Cell

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    A solar cell (also called photovoltaic cell or photoelectric cell) is a solid state electrical device that converts the energy of light directly into electricity by the photovoltaic effect. Assemblies of cells used to make solar modules which are used to capture energy from sunlight‚ are known as solar panels. The energy generated from these solar modules‚ referred to as solar power‚ is an example of solar energy. Photovoltaics is the field of technology and research related to the practical

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    Nerve Cells

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    Essay cover sheet Essay Title: How Do Nerve Cells Work and Why is it Important for Psychologists to know this? Student number: M00267898 Word count (Excluding title and references section):1‚062 Declaration By submitting this work I acknowledge that I am its author‚ that all sources consulted in its preparation are referenced appropriately in accordance with the referencing guide‚ and that I have not copied from any source. How Do Nerve Cells Work and Why is it Important for Psychologists

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    Alcohol and College Students Excessive drinking by college students has become a social phenomenon in which College students do not acknowledge the health risks that are involved with their excessive drinking habits. Furthermore‚ college students do not know enough about alcohol in general and what exactly it does to the body or they do not pay attention to the information given to them. There needs to be a complete saturation on the campuses‚ with the help of businesses and the media‚ expressing

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    "MMMM d‚ y" October 4‚ 2014 TEEN ALCOHOL ABUSE A teenage years‚ the period that all of us went through. The time when you are a teenager is very delicate period when you structure your future life. Wherever you are living there is always an alcohol around and being under age of 21‚ legal drinking age in America‚ challenge your temptations. America has a strict alcohol limitations but the under age drinking abuse is still at high point. A teenage alcohol abuse is very common social problem today

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    Stem Cells

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    Stem cells Nowadays‚ stem cells are the hottest topic in the medical field. More and more researches are performed to investigate these mystic cells. In order to go deeper into this topic and fully understand it‚ let’s first take a look at the stem cells themselves‚ their origins and characteristics which make them so unique and crucial for the medical field. Stem cells are very complex and complicated‚ and‚ that is why‚ it takes a lot amount of time to get to the bottom of their structure to be

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    Cell Phone

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    allow cell phones to be sold without pre-market testing. The rationale‚ known as the “low power exclusion‚” distinguished cell phones from dangerous microwave ovens based on the amount of power used to push the microwaves. At that time‚ the only health effect seen from microwaves involved high power strong enough to heat human tissue. The pressure worked‚ and cell phones were exempted from any type of regulatory oversight‚ an exemption that continues today. An eager public grabbed up the cell phones

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