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Biology 1.1-1.3

key terms for chapter one

TermDefinition
Science organized way of gathering and analyzing evidence about the natural world.
Observation the act of noticing and describing events or processes in a careful, orderly way.
Inference a logical interpretation based on what scientists already know.
Hypothesis a scientific explanation for a set of observations that can be tested in ways that support or reject it.
Controlled Experiment experiment in which only one variable is changed.
Independent Variable variable that is deliberately changed.
Dependent Variable variable that is observed and that changes in response to the independent variable.
Theory well-tested explanation that unifies a broad range of observations and hypotheses, and enables scientists to make accurate predications about new situations.
Bias particular preference or point of view that is personal, rather than scientific
Biology scientific study of life
DNA all organisms store the complex information they need to live, grow, and reproduce in a genetic code written in a molecule called this.
Stimulus signal to which an organism responds.
Sexual Reproduction type of reproduction in which cells from two parents unite to form the first cell of a new organism.
Asexual Reproduction process of reproduction involving a single parent that results in offspring that are genetically identical to the parent.
Homeostasis relatively constant internal physical and chemical conditions that organisms maintain.
Metabolism the combination of chemical reactions through which an organism builds up or breaks down materials.
Biosphere part of the Earth in which life exists including land, water and air or atmosphere.
Control Group group in an experiment that is exposed to the same conditions as the experimental group except for one independent variable.
Data evidence; information gathered from observations.
Created by: KroellA17
 

 



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