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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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dependent variable |
A variable whose value is measured during an experiment or other test to see whether it is influenced by changes in another variable. |
Chapter 1
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independent variable
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A variable whose value is manipulated or changed during an experiment or other test to reveal possible effects on another variable |
Chapter 1
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adaptation
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Inherited characteristic of an organ-ism that enhances its survival and reproduc-tion in a specific environment. |
Chapter 1
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reproduction
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Organisms (livingthings) reproducetheir own kind. |
Chapter 1
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eukaryote
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A type of cell with a membrane-enclosed nucleus and membrane-enclosed organelles. |
Chapter 1
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quantitative data
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are generally expressed as numerical measurements and often organized into tables and graphs. Scientists analyze their data using a type of mathematics called statistics to test whether their results are significant or merely due to ran- dom fluctuations. |
Chapter 1
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metabolism
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The totality of an organism’s chemical reactions, consist- ing of catabolic and anabolic pathways, which manage the material and energy resources of the organism |
Chapter 1
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experiment
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A scientific test, carried out undercontrolled conditions, involving manipulationof one or more factors in a system in order tosee the effects of those changes. |
Chapter 1
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hypothesis |
A testable explanation for a set of observations based on the available data and guided by inductive reasoning. |
Chapter 1 |
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membrane |
that regulates the passage of materials between the cell and its surroundings. |
Chapter 1
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prokaryote |
A type of cell lacking a membrane-enclosed nucleus and membrane-enclosed organelles. |
Chapter 1
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evolution |
Descent with modification; the idea that living species are descendants of ancestral species that were different from the present- day ones; also defined more narrowly as the change in the genetic composition of a popu- lation from generation to generation. |
Chapter 1
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theory
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An explanation that is broader in scope than a hypothesis, generates new hypotheses, and is supported by a large body of evidence. |
Chapter 1
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organization |
is the hierarchy of complex biological structures and systems that define life using a reductionistic approach. |
Chapter 1
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controls
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In a controlled experiment, a set of subjects that lacks (or does not receive) the specific factor being tested. Ideally, the control group should be identical to the experimental group in other respects |
Chapter 1
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reductionism
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reduces complex systems to simpler components that are more manageable tostudy.
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Chapter 1
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