|  |  | 
 
 
| 7 | An observation that deals with characteristics that cannot be expressed in numbers | 
 
 
| 9 | The diffusion of water moleclues through a selectively permemable membrane | 
 
 
| 10 | The process of grouping things based on their similarities | 
 
 
| 11 | The stage of a cell cycle that takes place beforecell division occurs | 
 
 
| 12 | The process that occurs in the formation of sex cells by which the number of chromosomes is reduced by half | 
 
 
| 13 | An organism whose cells contain nuclei | 
 
 
| 15 | The process of forecasting what will happen based on past expirence or evidence | 
 
 
| 16 | The process by which cells break down molelcues to release energy without using oxygen | 
 
 
| 17 | An organism that cannot make its own food | 
 
 
| 18 | A change in gene or chromosome | 
 
 
| 19 | The process of making an inference, an interpretation based on observations and prior knowledge | 
 
 
| 20 | made of a single cell | 
 
 
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