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21 Cards in this Set

  • Front
  • Back
asexual reproduction
process by which a single parent reproduces itself
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.
evidence; information gathered from observation
electron microscope
microscope that forms an image by focusing beams of electrons onto a specimen
a organism's surroundings
change in a kind of organism over time
process by which organisms maintain a relatively stable internal environment
proposed scientific explanation for a set of observations
logical interpretation based on prior knowledge and experience
manipulated variable
factor that is changed; independent variable
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
a signal to which an organism responds; any kind of detectable signal that carries info.
well tested explanation that unifies a broad range of observations
organized way of using evidence to learn about the natural world