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Life Science
about cells and organisms and all that kinda stuff.
19
Science
7th Grade
12/07/2011

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Cards

Term
Organism
Definition
living things
Term
cell
Definition
basic unit of structure and functions in an organism
Term
unicellular
Definition
single-celled organisms
Term
multicellular
Definition
organisms that are composed of many cells that are made for certain things
Term
stimulus
Definition
A change in an organisms surrounding that causes the organism to react
Term
response
Definition
an act or change in behavior
Term
development
Definition
change that occurs during an organisms life to produce a more complex organism.
Term
spontaneous generation
Definition
the mistaken idea that living things can arise from nonliving sources
Term
autotroph
Definition
organisms that make their own food
Term
heterotroph
Definition
organisms that can't make their own food
Term
homeostasis
Definition
the maintenance of stable internal conditions
Term
classification
Definition
the process of grouping things based on their similarities
Term
taxonomy
Definition
study of now living things are classified
Term
binomial nomenclature
Definition
the system for naming organisms in which each organism is given a unique, 2 part scientific name
Term
genus
Definition
a classification grouping that contains similar, closely related organisms.
Term
species
Definition
a grouping of similar organisms that can mate with each other and produce offspring that can also mate and reproduce
Term
prokaryote
Definition
organisms whose cells lack a nucleus
Term
nucleus
Definition
a dense area in a cell that contains nucleic acids
Term
eukaryote
Definition
organisms with cells that contain nuclei.
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