How bacteria can affect the lives of humans and other organisms Bacteria can enter the body in 3 different ways. Through the gas exchange system‚ by breathing in pathogens‚ most are trapped in the mucus lining in the lung epithelium. There are also cilia that move the mucus up the trachea and into the mouth where it is removed. However some bacteria is still able to reach the alveoli where they invade cells and cause damage. Another way it can enter the body is through the skin‚ if the skin is
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Experiment 3: Fluid Flow Friction and Fitting Loss Objective To determine the pressure or head loss in different diameters pipes‚ joints and valves Theory Pipe flows belong to a broader class of flows‚ called internal flows‚ where the fluid is completely bounded by solid surfaces. In contrast‚ in external flows‚ such as flow over a flat plate or an airplane wing‚ only part of the flow is bounded by a solid surface. The term pipe flow is generally used to describe flow through round pipes
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Some people argue for a broad university education in which students learn about many different subjects. Others argue for a specialized university education in which students learn only about a specific field of study. Which position do you agree with? Universities offer different kinds of classes. You can be offered to study many different courses or on the other hand to specialize in one subject. I think the second option is the best as you concentrate on the field you are interested in‚ which
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Running head: MATERIALISM 1 Trapped By Materialism College Writing MATERIALISM 2 Trapped By Materialism Nowadays there are so many temptations around us‚ such as brand-name clothing‚ fashion jewelries‚ new technology and so on. It is hard to resist them‚ especially for children and teenagers. When children get a little bit older‚ they sometimes develop
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Olivia G. d’Aliberti Mr. Dunn Law and Literature 27 February 2013 Trapped by Society In “The Ones Who Walk Away from Omelas” by Ursula K. Le Guin‚ “Harrison Bergeron” by Kurt Vonnegut Jr.‚ and Antigone by Sophocles people suffer for the benefit of the community. In Omelas‚ “the wretched one” (Le Guin 5) – a feeble-minded child – is locked in a basement to guarantee the happiness of the city. In the story Harrison Bergeron‚ Harrison is handicapped to look like “Halloween and hardware” (Vonnegut
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How important are fluids? Fluid replacement is probably the most important nutritional concern for athletes. Approximately 60% of your body weight is water. As you exercise‚ fluid is lost through your skin as sweat and through your lungs when you breathe. If this fluid is not replaced at regular intervals during exercise‚ you can become dehydrated. When you are dehydrated‚ you have a smaller volume of blood circulating through your body. Consequently‚ the amount of blood your heart
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Hydrothermal Vents and its Organisms! A hydrothermal vent is a fissure in a planet’s surface from which geothermally heated water issues. Hydrothermal vents are commonly found near volcanically active places‚ areas where tectonic plates are moving apart‚ ocean basins‚ an hotspots Hydrothermal vents exist because the earth is both geologically active and has large amounts of water on its surface and within its crust. Common land types include hot springs‚ fumaroles and geysers. Under the sea
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Marine Organism Introduction( By Elaine) Good morning‚ everyone. We are very honored to stand here to make this presentation. Firstly‚ I’d like to introduce our partners to you. This is our group leader Diao‚ and this is A‚ B‚ C‚ D‚ E. Today we are going to talk about the marine organism. Firstly let`s guess what it is ‚ok ‚let me tell you ‚it`s a kind of jellyfish‚and its name is Bougainvillia superciliaris. You may know that 71% of the earth is ocean‚ but you may not know how many
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In the book‚ Many Waters‚ Madeleine L’Engle‚ the author‚ uses words of advice from Aariel to Yalith to develop the theme of love. In the book‚ the main characters‚ Sandy and Dennys‚ were messing around in their parents’ lab when they are suddenly sent back to an oasis thousands of years ago. One character on the oasis named Yalith falls in love with the twins. Later on in the book‚ the god that they call El tells them that a deadly flood is coming to the oasis. Sandy and Dennys will have to leave
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* NCERT 1. Reproduction in Organisms INTRODUCTION Biology in essence is the story of life on earth. While individual organisms die without fail‚ species continue to live through millions of years unless threatened by natural or anthropogenic extinction. Reproduction becomes a vital process without which species cannot survive for long. Each individual leaves its progeny by asexual or sexual means. Sexual mode of reproduction enables creation of new variants‚ so that survival advantage is enhanced
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