reported: 1. Light flashes always produce the same number of oxidizing equivalents 2. either as precursor or as 02. The number of unstable precursor equivalents present during steady state photosynthesis is = 1.2 per photochemical trapping center. 3. The cooperation of the four photochemically formed oxidizing equivalents occurs essentially in the individual reaction centers and the final 0‚ evolution step is a one quantum process. 4. The data are compatible with a linear four step mechanism in
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ENVIRONMENTAL DEGRADATION‚ BIOCHEMICAL CYCLE AND ECOSYSTEM CYCLE MR. DANILO L. AUREADA Internal Assessor Instructor XIV SUBMITTED BY: MR. GABBY M. SANTAMARIA ETEEAP-BSIE Biochemical Cycles Table of Contents 1. Eutrophication 2. Contributors Plants such as trees and algae undergo the photosynthesis reaction where carbon dioxide and water in the presence of sunlight are converted to organic materials and oxygen. An important reverse reaction occurs in the water: Fish use metabooilism
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The rock cycle involves of a chain of continual progressions through which earth materials change from one form to another over time. Some processes in the rock cycle happen over millions of years and others occur much more quickly. There is no real starting or completion to the rock cycle; however‚ it may be appropriate to begin investigating the rock cycle with magma (Bergman 2005). Magma‚ or molten rock‚ forms only at certain locations within the earth‚ mostly along plate boundaries. Magma crystallizes
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The Cell Cycle Brittany Jameson Vista College Abstract The cell cycle is made up of five steps. These steps are interphase‚ mitosis‚ cytoplasmic division‚ cell differentiation‚ and cell death. During mitosis there is a series of four stages. The Cell Cycle To start the cell cycle the cells first go through a step called interphase. During this step the cell grows and synthesizes new molecules and organelles. In the S phase the DNA of the cell is replicated in preparation for cell division
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Chapter 10 (Business Cycles) Business Cycles (business Flucuations) The ups and downs in economy wide economic activities are called business cycles or busyiness fluctuations. When business fluctuations are positive they are called expansion‚ the opposite of expansion is contraction which is slow down in the pace of national economic activities. Phases of the business cycle over a several year period 1. A peak is when business activity reaches a temporary maximum with full employment and near
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The economic cycle is a fundamental economic understanding of the phases that an economy may experience during certain climates. This can be understood by the basic economic cycle diagram‚ which shows the different periods combined with a line representing trend growth. Governments ideally wish for uniform growth‚ close to or on the trend line‚ this is where the economy is continually expanding and growing at a rate which the government perceives to be sustainable. For example‚ the UK aim for 2.5%
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4. Risk of moderator variables during assessment A moderator variable is a variable that may affect the relationship between two other variables. As such‚ predictors and criteria for some candidates who have a particular score on the moderator variable could display different relationships than the predictors and criteria of other candidates‚ who have an alternative score on the moderator variable. Examples of moderator variables could include gender‚ age‚ length of service‚ and nationality (Spector
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In a letter to his wife‚ Robert E. Lee said‚ “What a cruel thing is war: to separate and destroy families and friends‚ and mar the purest joys and happiness God has granted us in this world” (Lee). This destruction can be seen in John Dante‚ the soldier from Cynthia Rylant’s I Had Seen Castles‚ and Harold Krebs‚ the veteran from Ernest Hemingway’s short story “Soldier’s Home.” Although John and Krebs face their suffering in different ways‚ these battle-scarred protagonists change in unique and similar
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How does acid precipitation affect marble and limestone buildings? Acid rain is a type of precipitation that is characterised by containing contaminating substances such as sulphuric and nitric acid‚ both of which have harmful effects on the environment. Both marble and limestone are extremely vulnerable to the damages done by acid rain due to their components. These materials contain calcite‚ a substance that easily reacts and dissolves with acid. Acid rain is the cause of the destruction of many
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Hydrological Cycle Hydrological cycle is the process that involves the continuous circulation of water in the Earth-atmosphere system. The hydrologic cycle is a conceptual model that describes the storage and movement of water between the biosphere‚ atmosphere‚ lithosphere‚ and the hydrosphere. Water on our planet can be stored in any one of the following major reservoirs: atmosphere‚ oceans‚ lakes‚ rivers‚ soils‚ glaciers‚ snowfields‚ and groundwater. Water moves from one reservoir to another by
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