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21 Cards in this Set

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