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Free research essays on topics related to: bacteria

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  • Five Days Fly Flies
    591 words
    Buzzzzzz! Buzzzzz! There they go buzzing away. Those pest that bother you all day. You know whom Im talking about, thats right flies. They buzz around you going into your ears and nose. Landing on your food and everywhere else. Some flies are favorable to humans, as parasites of bug pests or as scavengers and many others are important as plant pollinators. Flies are also understood to be carriers of diseases like cholera, typhoid, and dysentery. In most breeds of flies their body has padded feet...
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  • Ground Water Land Surface
    989 words
    ... e of people to the overlying land. The water is used for such activities as drinking, personal hygiene, residential maintenance, and industrial and agricultural purposes. Many of these activities involve the use and disposal of chemicals, which are potential pollutants. When these chemicals are used or disposed of incorrectly unacceptable amounts can get into the ground water and contaminate it. Several valuable aquifers have been polluted by the people living and working above them. Most hu...
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  • Gm Foods Genetic Modification
    1,195 words
    The British Government describes genetic modification as the altering of the genetic material in that organism in a way that does not occur naturally or natural recombination or both. Therefore genetic modification produces organisms that would not occur in nature, unlike farming methods such as selective breeding which could occur naturally. To opposers of GM foods this constitutes a fundamental difference. Genetic modification is when DNA fragments are transferred into different cells through ...
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  • White Blood Cells Cystic Fibrosis
    920 words
    WHAT IS CYSTIC FIBROSIS AND WHO DOES IT AFFECT: Every year, 1, 000 children with cystic fibrosis are born in the United States. 1 in 3, 000 Caucasian babies have the disorder, making Cystic Fibrosis one of the most common lethal genetic diseases in Caucasians. Overall, there are 30, 000 Americans with Cystic Fibrosis, and an estimated 8 million people carry one copy of the defective gene that causes the disease. These carriers do not have symptoms of Cystic Fibrosis, because a person must inheri...
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  • Plants And Animals One
    458 words
    Genetically engineered crops / animals Man has been changing the genetic make-up of plants and animals, in a limited way, for thousands of years -- ever since he look to planting seed from those wild grasses that gave the most grain and were easiest to harvest, or started keeping his fattest Cattle and woolliest sheep to breed from. We " ve come a long way since then, and today's sophisticated breeding techniques have led to such break-through as high-yielding rice and dwarf wheat. Despite our a...
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  • Role In The Nitrogen Cycle Nitrogen From The Atmosphere Tree
    374 words
    The nitrogen cycle is a complex biological cycle involving the recycling of usable nitrogen. If this cycle ceased to occur, all forms of life on the planet would die. All life forms, including humans, use nitrogen in compounds called amino acids. These amino acids then act as building blocks for proteins. Nitrogen, in fact, is the most abundant element in the atmosphere. Most organisms are unable to use this nitrogen from the atmosphere and rely on the nitrogen in the soil. The cycle consists of...
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  • Urinary And Digestive System
    1,151 words
    Digestive and Urinary System Lesson 1: The Digestive System Terms: q Digestion: q Absorption: q Elimination: q Mastication: q Peristalsis: q Gastric Juices: q Bile: Functions of the Digestive System: q Digestion, Absorption, and Elimination. q Digestion occurs in the digestive tract which includes: 1. Mouth: Mastication occurs and enzymes produced by salivary glands starts digesting carbohydrates. 2. Esophagus: 10 in. long and extends from the pharynx to the stomach. Food moves down the esophagu...
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  • The Science Of Bad Breath
    589 words
    The Science of Bad Breath Objective The main objective of the proposed project is to examine the scientific article The Science of Bad Breath written my Mel Rosenberg in order to understand the causes and physics of bad breath, the source of smell, other halitosis diagnosis, and to understand the biogenesis of bad breath issues. Method and Data The process involves review of scientific knowledge retrieved by Mel Rosenberg in result of his 20 year medicine practice; Rosenberg's sampling methods, ...
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  • Mycobacterium Tuberculosis Cerebrospinal Fluid
    1,099 words
    Meningitis Meningitis (or cerebrospinal meningitis) is the inflammation or infection of the tissues (dura mater of brain or spinal cord, pia mater of brain, cranial arachnoid or arachnoid of spinal cord) that cover spinal cord and the brain. Consequently, different types of microorganisms (viruses, bacteria, funds, etc) can cause meningitis. Infectiologists consider that under certain circumstances any microorganism can cause meningitis at any person of any age. However, infants and children up ...
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  • Red Blood Cells Vitamin B 12
    1,112 words
    Vitamin B 12 Vitamin B 12, scientifically known as coba lamin, has specific chemical structure and characteristics which qualify as a water-soluble vitamin. However, unlike the other water-soluble vitamins it is not disgorged quickly in the urine, but accumulates in the liver, kidney and other body tissues. Therefore, only after 5 or 6 years of B 12 insufficient diet the vitamin deficiency can be adequately distinguished. Vitamin B 12 serves as a methyl donor and cooperates with folic acid in pr...
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  • Genetically Altered Foods Proof Is Found One
    542 words
    Environmental science Genetically Altered Food It is quite evident that as technology advances m the scientific sense, we as Americans are becoming more interested. One of the conflicts that have raised concern here lately is that on genetically altered foods. By no surprise, one of the major questions of many is whether or not these foods are safe. As altered foods continue to be produced, we will begin to see much controversy. As the growing industry expands, soils the research, not only natio...
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  • Genetically Altered Foods Proof Is Found One
    540 words
    Genetically Altered Foods It is quite evident that as technology advances m the scientific sense, we as Americans are becoming more interested. One of the conflicts that have raised concern here lately is that on genetically altered foods. By no surprise, one of the major questions of many is whether or not these foods are safe. As altered foods continue to be produced, we will begin to see much controversy. As the growing industry expands, soils the research, not only nationally, but also inter...
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  • Plants And Animals Human Hormone People
    458 words
    Genetically engineered crops / animals Man has been changing the genetic make-up of plants and animals, in a limited way, for thousands of year sever since he look to planting seed from those wild grasses that gave the most grain and were easiest to harvest, or started keeping his fattest Cattle and woolliest sheep to breed from. Weve come a long way since then, and todays sophisticated breeding techniques have led to such break-through as high-yielding rice and dwarf wheat. Despite our advances...
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  • Sexually Transmitted Long Term
    398 words
    Gonorrhea is a Gonorrhea Gonorrhea Gonorrhea is a sexually transmitted disease. The disease is caused by the bacterium Neisseria gonorrhea that is a member of the family Neisseriaceae. The majority of the organisms belonging to this family are non-pathogenic or commensals, however, gonorrhea is always pathogenic. Bacteria are introduced during sexual contact. It attacks the urethra in males, the cervix (not the vagina) in females, and the throat. Because symptoms are not always present, you may ...
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  • Hydrogen And Oxygen Liquid Hydrogen
    1,177 words
    Hydrogen in its liquid form has been used in space vehicles for years. Hydrogen has a high combustion energy per pound relative to any other fuel, meaning hydrogen is more efficient on a weight basis than fuels currently used in air or ground transportation. Hydrogen is the universes most abundant element. Most of that hydrogen though, is tied up in chemical bonds. Hydrogen can exist in either a gaseous form or a liquid form. Hydrogen is The liquid form is usually used for storage while the gase...
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  • Hydrogen And Oxygen Liquid Hydrogen
    1,179 words
    Hydrogen in it? s liquid form has been used in space vehicles for years. Hydrogen has a high combustion energy per pound relative to any other fuel, meaning hydrogen is more efficient on a weight basis than fuels currently used in air or ground transportation. Hydrogen is the universe? s most abundant element. Most of that hydrogen though, is tied up in chemical bonds. Hydrogen can exist in either a gaseous form or a liquid form. Hydrogen is The liquid form is usually used for storage while the ...
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  • Bone Marrow Identical Twin
    641 words
    There are two different responses produced by the immune response in mammals. There is the Cell mediated response, and there is the antibody response. First we shall deal with the Cell mediated response. This response is based upon the help of T-Cells. There are various types of T-cells which all have different jobs in the system. The cell mediated response is mainly utilised in defence against intracellular pathogens, such as view and fungi (and some bacteria). The T-cell precursors are produce...
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  • Process Of Fermentation Forms Of Life Pasteur
    1,203 words
    Louis Pasteur was born on December 27, 1822, in D? le, a small town in France. He grew in a humble family and his father was a tanner. He graduated in 1840 from the College of Arts at Besancon and entered the prestigious Ecole Name Supervieure, Paris, to work for his doctorate degree. He chose for his studies the then obscure science of crystallography, which was to have a great influence on his career. Pasteur entered the scientific world as a professor of physics at the Lee of Tournon and star...
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  • Meat Eating Vegetarian Diet
    747 words
    Vegetarianism is a good idea for anyone, whether young or old, healthy or sick. Reasons supporting vegetarianism are inarguable since becoming a vegetarian is scientifically proven to improve one? s lifestyle in several different ways. First and most importantly to many, vegetarianism improves one? s health tremendously. Secondly, it can improve or display one? s spirituality and beliefs. Another reason for changing to a vegetarian lifestyle that most people don? t know is for the ecology and ou...
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  • Central Nervous System Anabolic Steroids
    1,185 words
    Drug and medicine- As our understanding of the chemical basis for biology has grown, we have learned more about how molecules which constitute life. Many scientists are beginning to understand the connections between the physical and psychological matters and the molecules that cause them. As a result, we can now use these new understandings of medicine against any dangerous or unpleasant conditions. For example, depression can be treated with drugs that can revive the brain to its normal level....
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