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What is life

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
organism   a living thing  
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cell   the basic unit of structure and function in an organism  
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unicellular   a single celled organism  
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multicellular   an organism composed of many cells  
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metabolism   the combination of chemical reactions that an organism uses to break down materials  
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stimulus   a change that causes an organism to react  
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response   an organism's change in behavior do to a stimulus  
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development   the change that happens over a lifetime, producing a more complex organism  
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asexual reproduction   involves only one parent that produces offspring identical to the parent  
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sexual reproduction   involves two parents and produces offspring that differs from both  
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spontaneous generation   the mistaken idea that living things can arise from non-living sources  
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controlled experiment   a series of tests where only one variable is changed  
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autotroph   organisms that make their own food  
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hetertroph   organisms that cannot make their own food  
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homeostasis   the maintenance of stable internal conditions  
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