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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
Biology   The scientific study of life  
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Life   The set of common characteristics that distinguish living organisms from non-living matter.  
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Properties of Life   Order, regulation, growth and development, energy utilization, response to the environment and the capacity to evolve over time  
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Biosphere   The global ecosystem; the entire portion of Earth inhabited by life; all of life and where it lives  
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Ecosystem   All the organisms in a given area, along with the nonliving (abiotic) factors with which they interact; a biological community and its physical environment  
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Prokaryotic Cell   A type of cell lacking a nucleus and other organelles, found only in the the domains bacteria and archaea  
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Eukaryotic Cell   A type of cell that has a membrane-enclosed nucleus and other membrane-enclosed organelles. All organisms are composed of this except bacteria and archaea  
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Genes   A unit of inheritance in DNA (or RNA in some viruses) consisting of a specific nucleotide sequence that programs the amino acid sequence of a polypeptide  
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Natural Selection   A process in which organisms with certain inherited characteristics are more likely to survive and reproduce than are organisms with other characteristics  
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Science   Any method of learning about the natural world that follows the scientific method  
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Discovery Science   The process of scientific inquiry that focuses on using observations to describe nature.  
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Scientific Method   Scientific investigation involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to demonstrate the truth or falseness of the hypothesis and results that validate or modify the hypothesis  
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Hypothesis-Driven Science   The process of scientific inquiry that uses the steps of the scientific method to answer questions about nature  
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Hypothesis   A tentative explanation that a scientist proposes for a specific phenomenon that has been observed.  
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Controlled Experiment   A component of the process of science whereby a scientist carries out two parallel tests, an experimental test and a control test.  
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Theory   A widely accepted explanatory idea that is broad in scope and supported by a large body of evidence.  
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Created by: utscha
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