BIOLOGY 22 MODULE 1 – Chemical Basis of Life v2.0 * Levels of Organization – biological functions are ultimately based on the properties of atoms and molecules * Subatomic particles – neutrons‚ electrons‚ protons * Atoms * Compounds * Complexes of compounds * Organelles – bodies within cells that perform specific functions * Cell * Specific combination of organelles * Can metabolize and reproduce * Least elaborate living structure * Significance
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concern about their body weight. Impulse-control disorders: psychological disorders in which people repeatedly engage in behaviors that are potentially harmful‚ feeling unable to stop themselves and experiencing a sense of desperation if their attempts carry out the behaviors are thwarted. Before they act on their impulses‚ these individuals experience tension and anxiety that they can relieve only by following through on their impulses. After acting on their impulses they experience a sense of pleasure
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ACTIVITY 1.3 America’s Promise LEARNING STRATEGIES: Learning Targets Previewing‚ Marking the Text‚ Think-Pair-Share‚ SOAPSTone Before Reading 1. The Statue of Liberty has long been a welcoming figure to the millions of immigrants who have come to the United States of America. What feelings or thoughts do you think people might have when looking at the Statue of Liberty for the first time as a new arrival to this country? Source: “An ocean steamer passing the Statue of Liberty:
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Midland Chemical Assignment Midland Chemical Co. is negotiating a loan from Manhattan Bank and Trust. The small chemical company needs to borrow $500‚000. The bank offers a rate of 8 ¼ percent with a 20 percent compensating balance requirement‚ or as an alternative‚ 9 ¾ percent with additional fees of $5‚500 to cover services the bank is providing. In either case the rate on the loan is floating (changes as the prime interest rate changes). The loan would be for one year. a. Which loan carries
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Bertolt Brecht en sy Epiese Teater Die mens se sienning oor die lewe word beïnvloed deur die tydperk waarin hy grootword asook sy omgewing. Wêreld oorloë samevatting: Bertolt Brecht. Die Duitse dramaturg‚ regisseur en digter wat erken word as een van die mees belangrikste en invloedryke figure van drama in die 20ste eeu. Brecht se unieke behandeling van sosiale temas en revolutionêre eksperimente met teater elemente het n geweldige groot invloed op moderne drama‚ toneelspel en teaterontwikkelings
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Victoria Chemicals: The Merseyside Project Executive Summary Victoria Chemicals is facing pressures from investors to improve its financial performances. The plant manager is currently considering whether to accept a GBP 12million initial outlay project to renovate its polypropylene production line at Merseyside plant. The benefit of the plant is the lower energy requirement of production and a greater manufacturing capacity. This report consist a recommendation for the plant manager which consists
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Chemical Energetics All about enthalpy‚ calorimetry and the First Law of Thermodynamics A Chem1 Reference Text Stephen K. Lower • Simon Fraser University1 Contents Part 1: Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Part 2: Basic thermodynamics: what you need to know . . . . . . . . . . . . . . . . . . 5 Systems and surroundings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Properties
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Chemical Reactions Chemical Change • reorganization • original substances form new substances with different formulas • may or may not involve a change of state • symbols used to describe chemical reaction are known as a chemical equation • Chemical equations do not have equal signs (=) they have an arrow Chemical Equations • Must follow the Law of Conservation of Matter • atoms can neither be created or destroyed during a chemical reaction • What
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http://www.cdc.gov/flu/ On the right side of the page of‚ there is a USA map. Click on the USA maps to answer the following questions. List a few states that currently have only local activity? District of Columbia and Alaska What states if any have widespread activity? Widespread influenza activity was reported by Guam and 46 states (Arizona‚ Arkansas‚ California‚ Colorado‚ Connecticut‚ Delaware‚ Florida‚ Idaho‚ Illinois‚ Indiana‚ Iowa‚ Kansas‚ Kentucky‚ Louisiana‚ Maine‚ Maryland‚ Massachusetts
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INTRODUCTION TO CHEMICAL BONDS CHEMICAL BOND Definition: A chemical bond is defined as a force that acts between two or more atoms to hold them together as a stable molecule. Main types of bond: 1. Ionic or electrovalent bond‚ 2. Covalent bond‚ 3. Coordinate covalent bond Forth type of bond: Metallic bond: The type of bonding which holds the atoms together in metal crystal. Valence electron: The electrons in the outer most energy level in an atom that takes part in chemical bonding
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