The purpose of this experiment was to determine the effects of temperature on the elasticity of rubber bands. There were three hypotheses: If the 0.157 cm rubber bands are heated to about 100˚C in water for one minute‚ then the rubber bands will stretch to approximately 60 cm; If the 0.157 cm rubber bands are cooled to 0˚C in water for one minute‚ then the rubber bands will stretch to approximately 40 cm; If the 0.157 cm rubber bands are left in room temperature water for one minute
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PAPER SUMMARY & REVIEW. Reference: Boateng R‚ (2011)‚"Mobile phones and micro-trading activities - conceptualizing the link"‚ info. Vol. 13 Iss: 5 pp. 48 – 62 kiResearch Issue An investigation into the impact of Mobile Phones on the micro-trading activities in Ghana. Research Problem/Research Questions 1)What is the effect of mobile phones on the micro trading activities of traders in Ghana? Research Frameworks Used 1. Target Group(Traders) 2. Mobile phones 3. Stages of trading (Pre-trade
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Candide Voltaire‚ a French philosophe and writer‚ wrote this document during the Enlightenment. He illustrates his opinion on many Enlightenment ideas‚ such as Leibnizian optimism‚ deism‚ and religious tolerance. He impacted many people‚ including Benjamin Franklin and Thomas Jefferson with his belief of religious toleration and civil rights. His view on organized religion also influenced the French Revolution. One of the Enlightenment views Voltaire addresses is Leibnizian optimism‚ or the
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“San Fernando Meat Shop and Mini Grocery’s Database System” Researchers: Melanie Claire Wagas (BSIT) Divina Arcilla (BSIT) Eugene Duetes (ACT) Arbejay Bandalan (ACT) MWF (8:30-9:30) Ms. Miriam Flores March 10‚ 2012 A database management system (DBMS) is a software package with computer programs that control the creation‚ maintenance‚ and use of a database. It allows organizations to conveniently develop databases for various applications by database administrators (DBAs) and other
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heavy metals D. dissolved riverbank minerals * Plants provide the entry point for energy into an ecosystem. How is this illustrated in a food pyramid? A. Plants are shown at the top of the pyramid. B. Plants always have the greatest overall bio-mass. C. Plants are located in the middle of the pyramid D. Plants have the smallest number of organisms.9. How does DNA change from generation to generation in asexual organisms? A. cloning B. mutation C. variation D. gene
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Enzymes An enzyme is a protein used to speed up the rate of a chemical reaction. Because they regulate the rate of chemical reactions‚ they are also called catalysts. There are many‚ many different types of enzymes‚ because for each chemical reaction that occurs‚ an enzyme specific to that reaction must be made. To act on a substrate‚ an enzyme must contain an active site. The active site is the area on the enzyme that allows the substrate and enzyme to fit together. The amino acids that are present
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however‚ without enzymes‚ these reactions could possibly take several years to complete. An enzyme is a macromolecule‚ generally a protein‚ that lowers the activation energy of a reaction without being changed by the reaction‚ and this causes the reaction to occur much faster than usual (Campbell et al.‚ 2014). The act of speeding of a chemical reaction is called catalysis‚ and molecules that perform this are called catalyst. Enzymes act as catalysts‚ and there a many types of enzymes that perform many
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Bio Review: Unit 1 Diversity of Living Things Diversity- all the different kinds of life on Earth Species Diversity- variety of species‚ abundance of the species in a given area Genetic Diversity- variation of genes within a species Ecosystem Diversity- diverse range of habitats‚ various organisms within habitats & relationships between them Prokaryotes Eukaryote Appearance Size - Always smaller - 1000x larger DNA structure - Plasmid (one strand circular DNA) - Dna in nucleoid
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effect different temperatures have on the enzyme (Rennin‚ in milk) Introduction: Rennin is usually present in out stomach it helps us digest protein. Enzymes have optimum temperatures‚ since rennin is an enzyme from the human stomach its optimum temperature would be around 37-38 Celsius‚ optimum pH would be 1-3. If the temperature is too low the enzymes will move around slowly. A temperature that is too high or an incorrect pH would denature the enzyme. Materials: 25 rennin labels Beaker
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to print a document or an organ. Is this a typing error or is it future brilliance?! “Fancy a new kidney? I’ll just print one off for you.” A brief glance at how future medicine for the next generation could be. With the invention of the ingenious Bio printer‚ this could be done! It is certainly creating a buzz in science and medical institutions globally. 3D printing is fast becoming a massive part of manufacturing and fabrication all over the world. Scientists and technological experts are able
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