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The levels of organization
N/A
12
Biology
12th Grade
09/27/2011

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Term
cell
Definition
a self contained unit that can carry out all the necessary functions for life
Term
single-celled organism
Definition
organisms that have only one cell
(ex. egg)(mostly prokaryote)
Term
multicellular organism
Definition
organisms that have more than one cell
(ex. humans)(mostly eukaryote)
Term
cellular level
Definition
each cell is essentially an independent, self sufficient unit. It can perform all the functions needed to sustain itself and reproduce and there is little or no cooperation among cells
Term
tissues
Definition
specialized coordinated groups of cells
These cells are specialized to contract and do work
Term
tissues are further organized into ______ that carry out specific functions
(The heart is an example)
Definition
organs
Term
different organs acting together to form _____ _______
(The digestive system which is made up of the moth, stomach, the intestine, etc… is an example)
Definition
organ system
Term
population
Definition
is a group of organisms of the same kind, or species, that lives in one place
Term
communities
Definition
formed from populations of different species that occur in the same place
Term
communities together with the physical or nonliving environment make up an _________
Definition
ecosystem
Term
muscles on a rocky shore are an example of a __________
Definition
population
Term
animals of more than one species living in the same place is an example of a _________
Definition
community
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