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4,610 Essays on Science. Documents 3,961 - 3,990

  • The Effects of Ephedra and Ephedrine Alkaloids in Weight Loss and Fitness

    The Effects of Ephedra and Ephedrine Alkaloids in Weight Loss and Fitness

    The Effects of Ephedra and Ephedrine Alkaloids in Weight Loss and Fitness With the rise in obesity consciousness and the desire to lose weight rapidly a wide array of dietary supplements have flooded the market over the past few years. Many of these pills, powders and drinks promise accelerated weight loss and increased energy and health without the need for much in the way of diet or exercise. One of the main ingredients of many

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    Essay Length: 1,043 Words / 5 Pages
    Submitted: November 15, 2009 By: Stenly
  • The Effects of Genetically Modified Organisms

    The Effects of Genetically Modified Organisms

    The Effects of Genetically Modified Organisms In the case of genetically modified organisms, or GMO’s, there are many viewpoints surrounding the effects of introducing manipulated genetic codes into our current food supply. Blind consumers, common farmers, and corporate entities that produce GMO’s, all see GMO use differently. What is truly happening? The results have been dramatic. Well, what we eat is being altered to produce higher yields, grow faster and most importantly make more

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    Essay Length: 502 Words / 3 Pages
    Submitted: December 11, 2009 By: Steve
  • The Effects of Global Warming

    The Effects of Global Warming

    THE EFFECTS OF GLOBAL WARMING "Global warming will be the greatest environmental challenge in the 21st century." - Vice President, Albert Gore. One of the most current and widely discussed factor which could lead to the ultimate end of existence of Earth and man is global warming and its devastating effects. Scientists have asked how fast the Earth is heating up, and how the warming effects on Earth may effect crops and climatic conditions. Several

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    Essay Length: 3,143 Words / 13 Pages
    Submitted: November 16, 2009 By: Steve
  • The Effects of Hiv Mutations on the Immune System

    The Effects of Hiv Mutations on the Immune System

    INTRODUCTION The topic of this paper is the human immunodeficiency virus, HIV, and whether or not mutations undergone by the virus allow it to survive in the immune system. The cost of treating all persons with AIDS in 1993 in the United States was $7.8 billion, and it is estimated that 20,000 new cases of AIDS are reported every 3 months to the CDC. This question dealing with how HIV survives in the immune system

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    Essay Length: 2,065 Words / 9 Pages
    Submitted: March 29, 2010 By: David
  • The Effects of Hydrogen Peroxide on the Fertilization of Sea Urchins Arbacia Punctulata

    The Effects of Hydrogen Peroxide on the Fertilization of Sea Urchins Arbacia Punctulata

    The Effects of Hydrogen Peroxide on the Fertilization of Sea Urchins Arbacia punctulata Biology 188 Thursday 9:30 Lab Brenda Seidel 13 April 2006 The Effects of Hydrogen Peroxide on Sea Urchins Arbacia punctulata Biology 188 Thursday 9:30 Lab Brenda Seidel 13 April 2006 Abstract The objective of this experiment is to determine what concentration of hydrogen peroxide in a salt water environment would be best for sea urchin fertilization. Our hypothesis is that an environment

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    Essay Length: 1,873 Words / 8 Pages
    Submitted: November 25, 2009 By: July
  • The Effects of Losing Rainforest

    The Effects of Losing Rainforest

    According to the article satellite images reflect that the Amazon rainforest is diminishing at an enormous rate. About 10,000 square miles of this beautiful forest is being lost to pastures for grazing, soybean plantations, and illegal logging. Since the year before there has been a forty percent increase in the deforestation of the Amazon forest. The Amazon is the world’s largest tropical rainforest. They expect this horrible trend to only become worse. Some conclude

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    Essay Length: 579 Words / 3 Pages
    Submitted: May 14, 2010 By: David
  • The Effects of Marijuana on the Adolescent Body and Brain

    The Effects of Marijuana on the Adolescent Body and Brain

    The Effects of Marijuana on the Adolescent Body and Brain The effects of marijuana on the developing young brain vary between short term effects and long term effects. Some short term effects can include negative impacts on memory, judgment and perception, difficulty with problem solving, limitations on motor skills including driving and even simple movement, and an increase of chances of poor judgment when it comes to other high risk behaviors, along with many other

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    Essay Length: 592 Words / 3 Pages
    Submitted: January 27, 2016 By: mikejuntts
  • The Effects of Photosynthesis on a Bean

    The Effects of Photosynthesis on a Bean

    The Effects of Photosynthesis on Bean Plants Purpose: To determine how the quantity of light will effect the growth of a bean from seed. Hypothesis: I think that the bean that is in light constantly for 24 hours will grow more quickly than the bean in full sunlight and in partial sunlight. I think that it will grow faster because it has a constant source of light every day. This will allow the bean to

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    Essay Length: 310 Words / 2 Pages
    Submitted: February 17, 2010 By: Top
  • The Effects of Photosynthesis on Bean Plants

    The Effects of Photosynthesis on Bean Plants

    The Effects of Photosynthesis on Bean Plants Purpose: To determine how the quantity of light will effect the growth of a bean from seed. Hypothesis: I think that the bean that is in light constantly for 24 hours will grow more quickly than the bean in full sunlight and in partial sunlight. I think that it will grow faster because it has a constant source of light every day. This will allow the bean to

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    Essay Length: 1,308 Words / 6 Pages
    Submitted: November 28, 2009 By: Victor
  • The Effects of Second Hand Smoke

    The Effects of Second Hand Smoke

    The Effects of Second Hand Smoke What is second-hand smoke? Second-hand smoke or environmental smoke as it is sometimes called, is a combination of the smoke coming off a burning cigarette, pipe or cigar and the smoke exhaled by a smoker. Second-hand smoke is a very awful disease that takes the lives of many people, including those of innocent children. It causes lung cancer, heart disease and many more diseases of the human body.

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    Essay Length: 1,033 Words / 5 Pages
    Submitted: November 24, 2009 By: Victor
  • The Effects of Stress on Short Term Memory

    The Effects of Stress on Short Term Memory

    The effects of Stress on Short Term Memory When someone says the word stress the mind immediately shifts to a negative thought with painful consequences, although stress can be either positive or negative. Negative stress has been blamed for a variety of health issues as well as psychological and physiological symptoms and problems. It is estimated that millions of pounds are lost in work related, educational and health care costs every year due to stress.

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    Essay Length: 6,577 Words / 27 Pages
    Submitted: June 5, 2010 By: Yan
  • The Effects of the Human Genome Project on Society

    The Effects of the Human Genome Project on Society

    What is the effect of the knowledge gained through the mapping of the human genome on society? Human genetics has remained a mysterious and spotty subject throughout history. The farther the human race advances, the more it learns and the more details it is able to clarify. Now, man has come to create a method of mapping out the complex and massive information stored within himself in order to better understand and further the health

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    Essay Length: 1,672 Words / 7 Pages
    Submitted: February 17, 2010 By: Yan
  • The Efficacy of Camellia Sinesis on Thermogenic Activity

    The Efficacy of Camellia Sinesis on Thermogenic Activity

    The Efficacy of Camellia sinesis on Thermogenic Activity Camellia sinensis, commonly known as green tea, has been used in medicine and social culture for thousands of years. Only recently it has gained scientific validity in its active principles in the treatment of a variety of ailments such as a cancer chemopreventive, a protective of cardiovascular disease, and its antioxidant, anticarcinogenic, anti-inflammatory, thermogenic and antimicrobial activities.1 All teas (green, black, and oolong) are derived from the

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    Essay Length: 320 Words / 2 Pages
    Submitted: March 14, 2010 By: Fonta
  • The Empirical Formula of a Copper Oxide

    The Empirical Formula of a Copper Oxide

    Steven Leung 9/19/06 Lab Report The Empirical Formula of a Copper Oxide Purpose: To convert an unknown copper oxide to copper (Cu) metal using natural gas to provide a reducing environment as shown below: Cu O (s) + CH (g) ЃЁ Cu (s) + Co (g) + H O (g) From the mass difference between the unknown copper oxide and the Cu metal generated at the completion of the reaction and the molar mass of

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    Essay Length: 360 Words / 2 Pages
    Submitted: November 12, 2009 By: Mike
  • The End of Nature Book Review

    The End of Nature Book Review

    The End of Nature Book Review Introduction 1 a) When Bill McKibben originally wrote this book in the late 1980s, the two observations were that we tell time badly and that our sense of scale is awry. 1 b) Nothing at all has changed, but actually gotten worse. It has increased by 15%. 1 c) Three pieces of evidence that support global warming is that sea levels will rise, warmer seasons and a lot more

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    Essay Length: 402 Words / 2 Pages
    Submitted: December 3, 2009 By: Fonta
  • The Energy Riddle

    The Energy Riddle

    The Energy Riddle Rakesh Mohan Hallen Energy is the basic necessity for life. But for energy no form of life would have ever emerged. We all know energy for providing us light and comfort. It can help us to cool down during summers and feel warm during winters. It also helps us to go from one place to another. All automobiles need energy to run; but even otherwise all other means of transport need energy.

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    Essay Length: 935 Words / 4 Pages
    Submitted: November 19, 2009 By: Bred
  • The Enhanced Greenhouse Effect

    The Enhanced Greenhouse Effect

    The Enhanced Greenhouse Effect For the past ten thousand years the earth’s climate has been extremely good and beneficial to mankind. Today however , major changes are taking place. Humans beings are changing the face of the entire planet by destroying the rain forests and pumping our pollutants into the air and water. Some of these gases are very toxic and they are destroying our ozone layers which allows life to exist on earth

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    Essay Length: 1,828 Words / 8 Pages
    Submitted: April 18, 2010 By: Jessica
  • The Entire Process of Photosynthesis

    The Entire Process of Photosynthesis

    Chapter 10 Learning Objectives: Write the summary equation for the entire process of photosynthesis. A simple word equation that can be used to describe the process of photosynthesis is carbon dioxide + water —> glucose + oxygen + water. A balanced chemical equation for the process can be written as 6CO2 + 6H2O —> C6H12O6 + 6O2. Overall, photosynthesis uses light energy to convert carbon dioxide into a carbohydrate. Describe how the 1st Law of

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    Essay Length: 1,248 Words / 5 Pages
    Submitted: October 24, 2018 By: norai
  • The Environment Plus Chemicals Equals Cancer

    The Environment Plus Chemicals Equals Cancer

    According many scientific researchers, our entire population has been dowsed with chemicals. There are several aspects of this dowsing that should concern us. First, and foremost, many of these chemicals are suspected to have damaging health effects on humans, as well as, other life forms. Second, most of these chemicals have only recently been produced so the environment is clearly changing and being challenged by these newcomers. Third, almost all of these chemicals exist in

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    Essay Length: 2,328 Words / 10 Pages
    Submitted: May 11, 2010 By: Victor
  • The Ergot's Curse

    The Ergot's Curse

    The Ergot’s Curse Mass murder has very rarely been associated with one type of poison. Ergot poison, though not directly linked to the murders, was a prominent factor in bringing about much distress in Salem, a very pious and upright town. Though unknown among the people of Salem, ergot poisoning caused massive hysteria in 1692. Ergotism affected only certain types of people and with different results. Ergotism is described as “long-term ergot poisoning…resulting from eating

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    Essay Length: 416 Words / 2 Pages
    Submitted: March 24, 2010 By: Jessica
  • The Eruption of Mount Pinatubo

    The Eruption of Mount Pinatubo

    The Eruption of Mount Pinatubo If you'd been on the Philippines in the year 1991, you'd have been forgiven for thinking that the world was ending. Typhoon Yunya was screaming across the island, but the angry skies were nothing compared with the angry Earth. Mount Pinatubo, an unassuming volcano that no one had even realized was active until a few years prior, was blowing its top. On the 15th June of 1991, the second largest

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    Essay Length: 2,254 Words / 10 Pages
    Submitted: April 6, 2014 By: rianricarte
  • The Eruptions on Mauna Loa and Stromboli

    The Eruptions on Mauna Loa and Stromboli

    Samantha Gray, Period 5 January 6, 2017 The Eruptions on Mauna Loa and Stromboli Volcanoes are mountains. Unlike most mountains in the world, they are formed from folding continental plates, uplift and erosion. Volcanoes are created when material from inside the Earth escapes to the surface, this material is known as lava. There are many volcanoes erupting at this very moment, but there are two main volcanoes that are going to be mentioned in the

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    Essay Length: 1,272 Words / 6 Pages
    Submitted: January 16, 2018 By: toystory
  • The Ethicality of Stem Cell Research

    The Ethicality of Stem Cell Research

    The Ethicality of Stem Cell Research Stem Cells and stem cell research alike are both a daunting and complex subject to the uninformed. The average American hears of the issue on a daily basis it seems – primarily the strife instigated by institutions with a “revivified” bioethical code. Yet, the average citizen has no idea, or any valid conception of what encompasses the study, or the true use of the cells themselves. Ask a person

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    Essay Length: 1,136 Words / 5 Pages
    Submitted: March 20, 2010 By: July
  • The Ethics of Cloning Humans

    The Ethics of Cloning Humans

    “Cloning? It’s just wrong!” Most likely, this is the first thing that pops into the majority of the general public’s head when faced with the issue. The disgust of the public should hardly be taken as a rational argument, or should it? Lord Patrick Devlin thought so, and produced a strong argument for it (Almond & Parker, 2003) Aside from this, there are an assortment of strong arguments and examples supporting cloning which the public

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    Essay Length: 2,167 Words / 9 Pages
    Submitted: January 10, 2010 By: Artur
  • The Ethics of Designer Babies

    The Ethics of Designer Babies

    Masha Logman 10-03 3/11/19 The Ethics of Designer Babies With the limits of technology and science being tested every day, a question of whether or not altering human genetic code should be legal arises. Genetically modifying plants and animals have already been done, and the majority percentage of the produce we consume is genetically customized. There are many reasons to be in favor of genetically altering the future generations, but do the benefits outweigh the

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    Essay Length: 668 Words / 3 Pages
    Submitted: April 17, 2019 By: marlogman
  • The European Wasp

    The European Wasp

    The European wasp is known by many names. It is more commonly called the European or German Wasp. Its scientific name is Vespila Germanica. The European Wasp originated from Europe, Northern Africa and Temperate Asia. It however has been introduced to other parts of the world including Australia and parts of North America. The European Wasp was not brought to Australia. Instead it is believed to have gotten to Australia through human transport. It is

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    Essay Length: 657 Words / 3 Pages
    Submitted: March 26, 2010 By: Mikki
  • The Eutrophication of Lakes

    The Eutrophication of Lakes

    The Eutrophication of lakes. Eutrophication is defined as Ў§the aging of a lake by the biological enrichment of its waterЎЁ (encyclopedia.com). This biological enrichment is caused by the addition of nutrients. There is natural eutrophication and cultural eutrophication. Cultural eutrophication is usually defined as the over-enrichment of lakes and rivers with nutrients, usually phosphorous, leading to excessive growth of algae and other aquatic plants. Cultural eutrophication is becoming more common with increased agricultural activity and

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    Essay Length: 347 Words / 2 Pages
    Submitted: December 26, 2009 By: Fonta
  • The Everglades

    The Everglades

    The Everglades is one of the lowest, youngest and most geologically stable parts of the North American continent. South Florida's geology, coupled with a warm, wet subtropical climate, provided conditions for the development of a huge, freshwater marshland ecosystem. The geology of south Florida’s Everglades is a result of marine and freshwater processes that have alternated with the rise and fall of sea level. At high sea level, limestone was deposited and beaches and

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    Essay Length: 857 Words / 4 Pages
    Submitted: December 19, 2009 By: Vika
  • The Everglades National Park

    The Everglades National Park

    The everglades national park The everglades national park is located in southern Florida. The variety of this habitat has made it a sanctuary for many animal species even some that are in danger of extinction. Some of the animals that take sanctuary in this national park are an assortment of reptiles such as alligators and snakes, an assortment of birds and even the endangered manatee. The everglades national park was put on the world

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    Essay Length: 919 Words / 4 Pages
    Submitted: December 2, 2009 By: Mike
  • The Evolution of Man

    The Evolution of Man

    THE EVOLUTION OF MAN The evolution of man is an area of study that will never fully be understood, however, evidence has been accumulated to allow us to paste together an idea of what happened in the beginning of time. It allows us to gather an idea of how man progressed to exist in the state in which we see him now. We can see that the evolution of man was directly influenced by his

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    Essay Length: 1,497 Words / 6 Pages
    Submitted: November 10, 2009 By: Mike
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