Chapter 1 | Biology: The Study of Life

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Biology
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the study of life
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Organism
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a single living thing
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Organization
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orderly structure shown by living things
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Reproduction
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the production of offspring
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Species
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a group of similar organisms that naturally mate with each other and produce fertile offspring
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Growth
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increase in the amount of living material and formation of new structures in an organism; a characteristic of all living things
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Development
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All of the changes that take place during the life of an organism
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Environment
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everything that surrounds a living thing
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Stimulus
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A change in an organism’s surroundings that causes the organism to react.
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Response
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a reaction to a stimulus
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Homeostasis
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process by which organisms maintain a relatively stable internal environment.
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Energy
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the ability to cause change
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Adaptation
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any inherited characteristic that increases an organism’s chance of survival
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Evolution
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the process by which species gradually change over time
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Scientific Method
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a series of steps that scientists use to answer questions and solve problems
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Hypothesis
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a testable explanation for an observation
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Experiment
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a planned procedure to test a hypothesis
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Control Group
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part of an experiment that is set to normal conditions to provide a standard that you can compare results against
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Independent Variable
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in an experiment, the conditions whose effects are tested; the conditions the researcher sets
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Dependent Variable
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in an experiment, the conditions that we measure changes in; changes in these conditions depend on changes in other variables
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Data
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information
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Theory
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A hypothesis that has been supported by a significant amount of data
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Ethics
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The principles of right and wrong that guide an individual in making decisions.
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Technology
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use of science to fit a practical purpose
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Quantitative Data
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data that is measurable and can be expressed in numbers; examples include 14cm and 96% correct answers
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Qualitative Data
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data that cannot be measured in numerical values; behaviors, emotions, scents, textures, etc.

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