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What is Life?
N/A
15
Biology
7th Grade
09/28/2010

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Term
organism
Definition
a living thing
Term
unicellular
Definition
a single-celled organism, include bacteria
Term
multicellular
Definition
organisms composed of many cells
Term
deveopment
Definition
process of change during an organism's life to produce a more complex organism
Term
response
Definition
an action or change in behavior
Term
cell
Definition
the basic unit of structure and function in an organism
Term
reproduce
Definition
to produce an offspring that is simillar to the parents
Term
autotroph
Definition
organism's that make their own food
Term
heterotroph
Definition
organisms that can not make their own food
Term
spontaneous generation
Definition
the mistaken idea that living things arise from nonliving sources
Term
homeostasis
Definition
the maintenance of stable internal conditions dispite changes in the surroundings
Term
characteristics of life
Definition
cellular organization, chemicals of life, energy use, growth and development, response to surroundings, reproduction
Term
photosynthesis
Definition
taking energy from the sun and converting it into a storeable form
Term
chemosynthesis
Definition
the process of converting chemicals into the carbohyrdrates and energy all organisms need to functiton
Term
The four needs of life
Definition
energy, water, living space, stable internal conditions
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