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24 Cards in this Set
- Front
- Back
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The change in the genetic makeup of a population or species over time
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Evolution
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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 variable that is changed in an experiment
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independent variable
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The study of living organisms or the science of life
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Biology
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A disease characterized by abnormal cell growth
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Cancer
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A group of organisms that look alike and are capable of producing fertile offspring in nature.
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species
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The study of the interactions of living organisms with one another and with their environment
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Ecology
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The smallest unit that can perform all the life processes
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cell
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A proposed explanation for an observation that can be tested by additional observations or experimentation
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hypothesis
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The process by which organisms make more of their own kind
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Reproduction
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The expected outcome if a hypothesis is correct
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prediction
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A process by which populations change in response to their environment as individuals better adapted to the environment leave more offspring than those individuals not suited to the environment.
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natural selection
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The measure of the acidity of a solution, representing the hydrogen ion concentration.
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PH
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The sum of all chemical processes occurring in an organism
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metabolism
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A variable that is measured in an experiment.
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dependent variable
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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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A planned procedure to test a hypothesis
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experiment
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Section of a chromosome that codes for a protein or RNA molecule
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Gene
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A group in an experiment that does not receive experimental treatment
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control group
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The transmission of genetic traits from parent to offspring
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heredity
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Human immunodeficiency virus
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HIV
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Change in the DNA of a gene or chromosome
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Mutation
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An explanation based on a set of related hypotheses that have been tested and confirmed many times
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theory
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A fatal genetic disorder in which excessive amounts of mucus are secreted, blocking intestinal and bronchial ducts and causing difficulty in breathing.
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cystic fibrosis
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