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vocabulary

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
organism   A living thing.  
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cell   The basic unit of a structure and function in an organism.  
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unicellular   Made of a single cell.  
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multicellular   made of many cells  
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stimulus   A change in an organism's surroundings that causes the organism to react.  
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response   An action or change in behavior that occurs as a result of a sitimulus.  
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development   The process of change that occurs during an organism's life to porduce a more complex organsim.  
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spontaneous generation   The mistaken idea that living things arise from nonliving sources.  
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controlled experiment   An experiment in which all factors are indentical excpet one.  
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autotroph   An organism that makes its own food.  
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heterotroph   An organism that cannot makes its own food.  
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homeostasis   The maintenance of stable internal condiciones.  
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classification   The process of grouping things based on their similarities.  
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taxonomy   The scientfic study of how living things are classified  
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binomial nomenclature   The system for naming organisms in which each organisms is given a unique, two-part scientific name indicating its genus and species  
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genus   A classification grouping that consists of a number of similar, closely related species  
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species   A group of of similar organism that can mate with each other and produce offspring that can also mate and reporduce  
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evolution   The process by which species gradually change over time  
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prokaryote   An organism whose cells lack nucleus and some other cell structures  
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nucleus   The dense area in a eukaryote cell that contains nucleic acids, the chemical instructtions that direct the cell's activities  
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eukaryote   An organism whose cells contain nuclei  
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