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vocab 2

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Term
Definition
unit   units are standards for measurement of physical quantities that need clear definitions to be useful  
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organism   an individual animal, plant, or single-celled life form.  
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biotic/abiotic   relating to or resulting from living things,physical rather than biological; not derived from living organisms.  
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unicellular   an organism that consists of only one cell,  
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multicellular   Having or consisting of many cells or more than one cell to perform all vital functions.  
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prokaryotic   Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures.  
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eukaryotic   any organism having as its fundamental structural unit a cell type that contains specialized organelles in the cytoplasm,  
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binomial nomenclature   the system of nomenclature in which two terms are used to denote a species of living organism,  
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kingdom   The highest classification into which living organisms are grouped in Linnean taxonomy,  
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prefix   a word, letter, or number placed before another  
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homeostasis   the tendency toward a relatively stable equilibrium between interdependent elements,  
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excretion   Excretion is the process by which metabolic wastes and other non-useful materials are eliminated from an organism  
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synthesis   The combining of separate elements or substances to form a coherent whole.  
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respiration   the action of breathing.  
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transport   The movement of ions or molecules across a cell membrane in the direction opposite that of diffusion  
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autotrophic   An organism that manufactures its own food from inorganic substances, such as carbon dioxide and ammonia.  
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heterotrophic   An organism that cannot manufacture its own food and instead obtains its food and energy by taking in organic substances  
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egestion   the discharge or expulsion of undigested material  
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reproduction   The production of offspring by organized bodies  
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metabolism   the chemical processes that occur within a living organism in order to maintain life.  
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