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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Unitary and Modular Organisms: Their Response to Environmental Changes and Perturbation1 Casey Jon Vea Group 3 Section U-2L August 3‚ 2011 ------------------------------------------------- 1A scientific paper submitted in partial fulfillment of the requirements in Biology 150‚ Principles of Ecology laboratory under Mrs. Charina Grace B. Banaay ‚ Ist semester 2011-2012 Abstract Every individuals or organisms dwell in a place where well suited for their growth and development‚ survival and reproduction
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How to Write a Paper 1. Get an idea (something that caught my interest in class) 2. Gather more information from acceptable sources (books & articles) 3. Read the articles from step 2 4. Think about the issue from step 1in light of new information from step 3 5. Prepare an outline 6. Write the paper Should I write it myself or cut and paste from the web? If I am caught‚ I will get a cheating F (2 cheating Fs = expelled from university). So‚ if I use someone else’s idea I will cite Soldat (2009)
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Exercises 9 address driver-id person name owns license model year car report-number location date driver participated accident damage-amount Figure 2.1 E-R diagram for a Car-insurance company. Exercises 2.1 Explain the distinctions among the terms primary key‚ candidate key‚ and superkey. Answer: A superkey is a set of one or more attributes that‚ taken collectively‚ allows us to identify uniquely an entity in the entity set. A superkey may contain extraneous attributes
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Discuss the role of negative feedback in living organisms and how it benefits these living organisms? (25 marks) Negative feedback is the process by which changes occur to bring an organism’s internal environment back to the normal level. One example of negative feedback in a living organism is the ways humans regulate their blood glucose levels. I will firstly discuss the processes that occur as a result of blood glucose levels being too low. When blood glucose levels are too low the pancreas
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Application-Level Requirements List 1. Value of Dollar 2. Value of comparing currency 3. Calculation of dollar value against subject currency value 4. Display results Input-Process-Output Chart Complete the following input-process-output chart for the application using a structured programming approach. Input | Process | Output | Dollar Value | get | Real number | Florien currency | get | Real number | Calculate difference | Divide | Decimal | Display
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The Use of Cooling Curves in the Determination of the Phase Diagram for a Lead-Tin System V.O.L.Tabell Department of Mining‚ Metallurgical and Materials Engineering University of the Philippines‚ Diliman vo_tabell@yahoo.com Abstract This paper discusses the use of the cooling curves in the determination of the phase diagram of a Lead-Tin system. The inflection points of these cooling curves were obtained by melting a series of mixtures of lead and tin at varying compositions. These critical
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Introduction Genetically Modified Organisms (GMO)‚ are organisms whose genetic material has been artificially manipulated in a laboratory through the means of Genetic Engineering. It is when a gene from one organism is taken and inserted into another in order to improve and produce a desired trait for that certain organism. Sometimes it is known as "transgenic" for transfer of genes. Mostly‚ GMOs are done with agricultural crops and animals that are consumed for food. Food‚ most needed by humans
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The V-n diagram usually focuses on both positive and negative loads‚ however since there is little knowledge known about the box wing‚ for simplicity‚ the positive loads are assumed to be more significant. Hence‚ if the box wings are optimised with the positive loads‚ the negative loadings will also be covered due to its least significance. The 3.5g pull out of dive is known as the most extreme load which is closest to critical pressures for distortion‚ as shown in figure (3.4). Hence using this
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How is a cell’s membrane structure suited to its functions? Throughout the past century‚ scientists have been able to conduct more research on the structure of a cell membrane and understand its components and functions. The present agreed on model‚ created in 1972 by S. J. Singer and G. Nicolson‚ is called the fluid mosaic model. This model depicts that proteins (integral and peripheral) form a mosaic since they are floating in a fluid layer of phospholipids‚ which makes up the components of
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