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Chapter 1

Living Things

TermDefinition
oraganism a living thing
cell the basic unit of structure and function in an organism
unicellular made of a single cell
multicellular consisting of many cells
stimulus a change in an organism's surrounding that causes the organism to react
response an action or change in behavior that occurs as a result of stimulus
development the process of change that occurs during an organism's life to produce a more complex organism
spontaneous generation the mistaken idea that living things arise from non-living things
controlled experiment an experiment in which all features are identical except one
autotroph an organism that makes its own food
heterotroph an organism tat cannot make its own food
homeostasis the maintenance of stable internal conditions
classification the process of grouping things based on their similarities
taxonomy the scientific study of how living things are classified
binomial nomenclature the system for naming organisms in which each organism is given a unique two part scientific name indicating its genus and species
genus a classification grouping that consist of a number of similar closely related species
species a group of similar organisms that can mate with each other and produce offspring that also can mate and produce
evolution the process by which species gradually change overtime
prokaryote organisms with cells without nucleus, unicellular
nucleus area in a cell that contains nucleic acids
eukaryote organisms with cells that contain nuclei
Created by: mbernhardt
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