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24 Cards in this Set
- Front
- Back
Biology
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science of life
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Cell
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smallest unit that can perform all the life processes
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Evolution
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change in the genetic makeup of a population or species over time
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Ecology
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the study of living organisms with one another and with their environment
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Gene
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section of a chromosome that codes for a protein or RNA molecule
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Heredity
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transmission of genetic traits from parent to offspring
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Homeostasis
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the maintenance of stableinternal conditions in spite of changes in the external environment
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Mutation
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change in the DNA of a gene or chromosome
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Metabolism
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sum of all chemical processes occuring in an organism
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Natural Selection
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process by which populations change in response to their environment as individuals better adapted to the environment leave more offspring thanthose individuals not suited to the environment
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Reproduction
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the process by which organisms make more of their own kind
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Species
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group of organisms that look alike and are capable of producing fertile offspring in nature
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HIV
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human immunodeficiency virus; infectious virus that causes AIDS
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Cancer
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a disease characterized by abnormal growth
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Cystic Fibrosis
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fatal genetic disorder in which excessive amounts of mucus are secreted, blocking intestinal and bronchinal ducts and causing difficulty in breathing
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control group
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a group in an experiment that does not receieve experimental treatment
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dependent variable
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variable that is measured in an experiment
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Experiment
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a planned procedure to test a hypothesis
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Hypothesis
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a proposed explanation for an observation that can be tested by additional observations or experimentation
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independent variable
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factor that is varied in an experiment
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Observation
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the act of nothing or perceiving objects or events using the senses
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pH
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measure of the acidity of a solution, representing the hydrogen ion concentration
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Prediction
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the expected outcome if a hypothesis is correct
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Theory
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explanation based on a set of related hypotheses that have been tested and confirmed many times
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