Modified Winkler Method for Dissolved Oxygen Determination Tiffany T. Lee Department of Biological Sciences‚ College of Science University of Santo Tomas‚ Manila‚ Philippines 1008 Date of Submission: February 17‚ 2011 Abstract In this experiment‚ the Winkler Method was used to measure the dissolved oxygen (d.o.) in a water sample from the pond in the Arch of the Centuries which had the owl statues. Then‚ the amount of oxygen is determined through a series of reaction. Usually‚ Winkler
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Renewable Energy Sources are defined renewable non-fossil energy sources including wind‚ solar‚ geothermal‚ wave‚ tidal‚ hydropower‚ biomass‚ landfill gas‚ sewage treatment plant gas and biogases. In Hong Kong‚ the energy consumption is highly relied on non-renewable resources such as coal‚ natural gas‚ oil etc. However‚ if we only depend on those resources continuously‚ it may have a high risk of deficiency. Because of the limitation of the Non-Renewable Resources‚ Renewable Energy Sources have
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Running Head: Energy Conversion Energy Conversion Marlon Walker Professor Abdul Kahn SCI 110: Integrated Science October 21‚ 2011 Abstract Energy conversion has been a topic of debate and research for many years. Scientists conduct experiments in hopes of finding an alternative to relying on burning fossil fuels for electricity. While companies who believe their alternative is the best choice‚ debate over whose source is the “greenest”. Whether it be biomass‚ hydroelectricity‚ solar
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RENEWABLE ENERGY IN MALAYSIA BY MOHD HAIRINIZAM ABDUL KARIM FACULTY OF BUSINESS MANAGEMENT UITM‚ ARAU PERLIS FOR ENCIK KAMSOL MOHAMED KASSIM LECTURER ENVIRONMENTAL MARKETING (MKT 665) FACULTY BUSINESS MANAGEMENT UITM‚ ARAU PERLIS ACKNOWLEDGEMENT This assignment is to meet the learning needs of the subjet of MKT 665 (Environmental Marketing). MKT 665 is one of the subjects taught in the modules for the study of the Faculty of Business Administration (Marketing). In completing
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Site Plan | I. Neurons/nerve cells A neuron is a cell specialized to conduct electrochemical impulses called nerve impulses or action potentials. Neuron is the main cellular component of the nervous system‚ a specialized type of cell that integrates electrochemical activity of the other neurons that are connected to it and that propagates that integrated activity to other neurons. They are the basic information processing structures in the CNS.
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October 2014 Cell Division Mitosis Abstract Mitosis and Meiosis: Cells can be divided in unicellular organisms or in multi-cellular organisms. DNA controls the cell division. Bacteria reproduce by a process called binary fission. Bacteria have one chromosome that’s attached to the cell membrane. The chromosome replicates and the two copies separate as the cell grows. Over a period of time this one cell makes two cells. Eukaryotes do the process of mitosis. In mitosis‚ each daughter cell gets about
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Energy Crises Energy is considered to be life line of any economy and most vital instrument of socioeconomic development of a country. Energy is pivotal in running machinery in factories and industrial units‚ for lighting our cities and powering our vehicles etc. There has been an enormous increase in the demand of energy as a result of industrial development and population growth‚ in comparison to enhancement in energy production. Supply of energy is‚ therefore‚ far less than the actual
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plant cells Part Function Nucleus Contains genetic material‚ which controls the activities of the cell Cytoplasm Most chemical processes take place here‚ controlled by enzymes Cell membrane Controls the movement of substances into and out of the cell Mitochondria Most energy is released by respiration here Ribosomes Protein synthesis happens here Extra parts of plant cells Part Function Cell wall Strengthens the cell Chloroplasts Contain chlorophyll‚ which absorbs light energy for photosynthesis
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Genetically Modified Organisms: The Truth In recent decades‚ people have come to the idea that there is truly something sinister about genetically modified organisms. Contrary to what many people believe‚ genetically modified organisms possess the ability to juristically benefit the world in a number of positive ways. Genetic engineering can help create a larger production and a longer shelf life for crops‚ making it possible to safely send and transport them to countries and nations without access
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Chapter 2 IB Biology 2.1 Cell Theory 2.1.1 Outline the cell theory (2). • All organisms are composed of one or more cells • Cells are the smallest units of life • All cells come from preexisting cells • TOK: cell theory replaces the former ideas of spontaneous generation or abiogenesis in which inanimate matter assembles itself into living forms • Exception: muscle cells- more than 1 nucleus‚ very long; (fungal cells) hyphae roots- not a single unit; protoctista- not specialized to single
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