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Chapter 1

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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Term
Definition
Organisms   any living things  
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cell   the basic structure of an organism  
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unicellular   a single cell organism  
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multicellular   an organism with many cells  
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stimulus   a change in an organisms surroundings that causes the organism to react  
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response   a change in behavior  
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spontaneous generation   the false idea that living things can come from non-living things  
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controlled experiment   an experiment where all of the factors are the same except for one factor  
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autotroph   organisms that can make their own food  
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heterotroph   organisms that cannot make their own food  
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homeostasis   maintenance of stable internal conditions  
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classification   the process of grouping things based on their similarities  
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taxonomy   the scientific study of how living things are classified  
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genus   a classification grouping that contains similar closely related organisms  
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species   a group of similar organisms that can reproduce with one another  
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evolution   the process that species change over long periods of time  
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binomial nomenclature   the naming system in which each organism is given a unique two-part name (created by Linnaeus)  
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prokaryote   organisms whose cells lack a nucleus  
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nucleus   a dense area in the cell that contains nucleic acids (controls the cell)  
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eukayote   organisms with cells that contain nuclei  
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Created by: brebekah
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