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Bio Ch 1 Lehmann

Bio Ch 1

TermDefinition
Science An 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 An experiment in which only one variable is changed
independent variable The variable that is deliberately changed
dependent variable The variable that is observed and that changes in response to the independent variable
control group Exposed to the same conditions as the experimental group except for one independent variable
Data Information gathered from observations
Theory Evidence from many scientific studies that support the same hypothesis can form this
Bias A particular preference or point of view that is personal, rather than scientific.
Biology The 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 A signal to which an organism responds
sexual reproduction Cells from two parents unite to form the first cell of a new organism
asexual reproduction A single organism produces offspring identical to itself
Homeostasis An organism's ability to maintain steady internal conditions even when external conditions change dramatically.
Metabolism The combination of chemical reactions through which an organism builds up or breaks down materials
Biosphere Consists of all life on Earth and all parts of the Earth in which life exists, including land, water, and the atmosphere.
Created by: beckerk
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