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32 Cards in this Set
- Front
- Back
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Science
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Organixed way of using evidence to learn abou the natural world
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Observation
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The process of gathering information about events or processes in a careful, orderly way.
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Data
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Informaiton gathered from observations.
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Inference
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A logical interpretation based on prior knowledge or experience.
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Hypothesis
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A proposed s cientific explanation using prior knowledge or what they already know.
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Spontaneous Generation
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Idea that life could arise from nonliving matter.
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Controlled Experiment
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An experiment where only one variable is changed at a time. All other variables should be kept unchanged or controlled.
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Manipulated Variable
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The variable that is deliberately changed.
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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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Theory
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As evidence from numerous investigations builds up, a particular hypothesis may become so well suppported that scientist consider it a theory.
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Biology
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the study and understanding of the living world
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Cell
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A collection of living matter enclosed by a barrier that separated the cell from its surroundings.
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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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Asexual Reproduction
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The new organism has a single parent.
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Metabolism
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Combination of chemical reactions through which an organism builds up or breaks down materials as it carries out its life.
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Stimulus
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A SIGNAL TO WHICH AN ORGANISM RESPONDS.
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Homeostasis
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The ability of an organism to keep internal conditions, such as temperature and water content, constant in order to survive.
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Evolution
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Change in an organism ver time
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Ecosystem
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Community and its nonliving surroundings
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Bioshpere
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The part of the Earth that contains all ecosystems
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Communicty
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Populations tha tlive together in a defined area
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Population
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Group of organisms of one type that live in the same area
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Organism
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Individual living thing
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Group of cells
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Tissues, organs, and organ systems
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Cells
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Smallest functional unit of life
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Molecules
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Groups of atoms, smallest until of most chemical compounds
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Metric system
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Decimal system of measurment whose units are based on certain physical standards and are scaled on multiples of 10.
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Microscopes
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Devices 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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All light to pass through the specimen and use two lenses to form an image.
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Electron Microscope
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Use beams of electrons, rather than light to produce images.
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Cell culture
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A group of cells reproduced from a single cell
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Cell Fractionation
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A techniques used to separate the different cell parts.
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