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BiologicalOrganization

BiologicalOrganization - Biological Organization The...

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Biological Organization The Classification of Organisms
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What Is Life? ________ Processes 1. Nutrient uptake 2. Nutrient processing 3. Waste elimination ________ Processes Growth – increase in size Reproduction – increase in number ________ Processes 1. Quick responses to environment (ex. taxis) 2. Individual adaptation (like becoming acclimated to high altitudes) 3. Evolution (genetic change of a population over time) ________ Processes Ensure organisms carry out metabolic activities in proper sequence and at proper rate. Ref: Ross, F; Port, T; photo http://www.pbs.org/wgbh/nova/teachers/activities/3112_origins_01.html
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The Cellular Level of Organization Living things are constructed of cells . Living things may be unicellular or multicellular . Cells are small so they can exchange materials with their surroundings. Surface area relative to the volume decreases as size of cell increases. - limits the size of cells ______ ________ states: - All organisms are composed of one or more cells. - Cells are the basic unit of structure and function in organisms. - All cells come only from other cells. STRUCTURE OF MICOBIAL CELLS
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Life and Nonlife Cellular  Microorganisms Acellular Particles ________ ________ ________ Everything else!  (Yes, everything!)
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Two basic types of cells There are two types of cells: prokaryotic eukaryotic ______________ Almost always single-celled (except for prokaryote colonies). Always reproduces by means of binary fission.
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BiologicalOrganization - Biological Organization The...

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