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21 Cards in this Set
- Front
- Back
asexual reproduction
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process by which a single parent reproduces itself
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biology
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science that seeks to understand the living world
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compound microscope
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microscope that allows light to pass through a specimen and uses 2 lenses to form an image
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controlled experiment
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a test of effect of a single variable by changing it while keeping the other variables the same.
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controlled variable
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that factor that is kept the same.
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data
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evidence; information gathered from observation
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electron microscope
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microscope that forms an image by focusing beams of electrons onto a specimen
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environment
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a organism's surroundings
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evolution
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change in a kind of organism over time
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homeostasis
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process by which organisms maintain a relatively stable internal environment
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hypothesis
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proposed scientific explanation for a set of observations
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inference
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logical interpretation based on prior knowledge and experience
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manipulated variable
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factor that is changed; independent variable
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metabolism
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set of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes
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metric system
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decimal system of measurement based on certain physical standards and scaled on multiples of 10
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responding variable
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factor that is observed;which may changed in response to the manipulated variable;;dependent variable
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sexual reproduction
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process by which 2 cells from different parents unite to produce the 1st cell of a new organism
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spontaneous generation
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hypothesis disproven; stating that life could arise from non living matter
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stimulus
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a signal to which an organism responds; any kind of detectable signal that carries info.
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theory
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well tested explanation that unifies a broad range of observations
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science
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organized way of using evidence to learn about the natural world
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