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24 Cards in this Set
- Front
- Back
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Stimulus
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A sign to which an organism responds
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Sexual Reproduction
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Cells from two different parents unite to produce the first cell of the new organism
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Manipulated Variable
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Varible that is deliberately changed
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Data
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Information gathered from observations
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Spontaneous Generation
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The idea that life could arise from nonliving matter
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Cell
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A collection of living matter enclosed by a barrier that seperates the cell from its surroundings
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Controlled Experiment
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A hypothesis tested by an experiment in which one vareable is changed at a time; all other should be kept unchanged, or controlled
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Responding Variable
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Variable that is observed and that changes in response to the manipulated variable
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Metric System
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A decimal system of measurement whose units are based on certain physical standards and scaled on multiples of 10
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Evolution
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The ability of a group of organisms to change over time
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Electron Microscopes
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Use beams of electrons to produce images
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Microscopes
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Devises that produce magnified images of structures that are too small to see with the unaided eye
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Compound Light Microscope
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Allow light to pass through the specimen and use two lenses to form an image
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Cell Fractionation
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A teqnique to seperate the different cell parts
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Cell Culture
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A group of cells, developed from the single origonal cell
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Homeostasis
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The process in which organisms keep internal conditions fairly consistant to survive
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Observations
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The process of gathering information about events or processes in a careful, orderly way
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Hypothesis
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A proposed scientific explination for a set of observations
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Biology
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The study of life; science that seeks to understand the living world
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Theory
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Well supported hypothesis
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Inference
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A logicval interpretation based on prior knowledge or experience
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Science
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An organized way of using evidence to learn about the natural world
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Metabolism
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The combiination of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes
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Asexual Reproduction
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New organism has a single parent
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