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26 Cards in this Set
- Front
- Back
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the study of life
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Biology
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a highly organized, tiny structure with thin coverings called membranes
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Cell
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the process by which organisms produce offspring from one generation to the next
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Reproduction
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the sum of all of the chemical reactions carried out in an organism
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Metabolism
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the maintenance of stable internal conditions in spite of changes in the external environment
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Homeostasis
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the basic unit of heredity
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Gene
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the passing of traits from parent to offspring
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Heredity
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a change in DNA
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Mutation
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a change in the inherited characteristics of species over generations
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Evolution
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a group of genetically similar organisms that can produce fertile offspring
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Species
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the process in which organisms with favorable traits are more likely to survive and reproduce
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Natural Selection
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the branch of biology that studies the interactions of organisms with one another and with the nonliving part of their environment
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Ecology
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the complete genetic material contained in an individual
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Genome
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a virus that attacks and destroys the human immune system
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HIV
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a growth defect in cells, a breakdown of the mechanism that controls cell division
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Cancer
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a fatal disorder in which a thick, sticky mucus clogs passages in many of the body’s organs
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Cystic Fibrosis
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the replacement of a defective gene with a normal version
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Gene Therapy
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the act of noting or perceiving objects or events using the senses
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Observation
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a statement that can be tested by additional observations or experimentation
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Hypothesis
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the expected outcome of a test
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Prediction
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a relative measure of the hydrogen ion concentration within a solution
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pH
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a planned procedure to test a hypothesis
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Experiment
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a group in an experiment that receives no experimental treatment
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Control Group
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the factor that is changed in an experiment
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Independent Variable
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the variable that is measured in an experiment
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Dependent Variable
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a set of related hypotheses that have been tested and confirmed many times by many scientists
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Theory
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