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scientific process, characteristics of life

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Term
Definition
Adaptation   Inherited characteristic of a species that develops over time in response to an environmental factor  
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Biology   Science of life  
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Constant   A factor that remains fixed during an experiment while the independent and dependent variables change; controlled variable  
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Control group   In a controlled experiment, the group not receiving the factor being tested; the standard to compare to.  
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Data   Quantitative or qualitative information gained from scientific investigation.  
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Dependent variable   Factor being measured in a controlled experiment; its value changes because of the changes to the Independent variable.  
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Development   Changes an organism undergoes in its lifetime before reaching its adult form; characteristic of life  
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Experiment   Procedure performed in a controlled setting to test a hypothesis and collect precise data.  
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Experimental group   In a controlled experiment, the group receiving the factor being tested.  
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Growth   Process that results in mass being added to an organism; characteristic of life  
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Homeostasis   Regulation of an organism's internal environment to maintain conditions needed for life (temperature, pH, blood glucose)  
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Hypothesis   Testable explanation of a situation.  
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Independent variable   The one factor that can be changed in a controlled experiment; is the factor tested and affects the experimental outcome.  
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Inference   Assumption based on observations  
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Metric system   Measurement system whose divisions are powers of ten.  
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Observation   Orderly, direct information gathered about a phenomenon. Something you can directly see, taste, hear, touch etc.  
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Organism   Anything that has or once had all the characteristics of life  
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Organization   Orderly structure shown by living things; characteristic of life  
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Peer Review   A process in which the procedures used during an experiment may be repeated and the results evaluated by scientists who are in the same field.  
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Pseudoscience   a claim, belief or practice presented as scientific, but which does not adhere to the scientific method.  
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Reproduction   Production of offspring; characteristic of life  
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Response   Organism's reaction to a stimulus  
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Science   A body of knowledge based on the study of nature  
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Scientific Method   A series of problem-solving procedures that might include observations, forming a hypothesis, experimenting, analyzing data and drawing conclusions.  
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SI   System of measurements used by scientists, abbreviation of the International System of Units.  
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Species   Group of organisms that can interbreed and produce fertile offspring  
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Stimulus   Any change in an organism's internal or external environment that causes the organism to react.  
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Theory   Explanation of a natural phenomenon based on many observations and investigations over time.  
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