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14 Cards in this Set
- Front
- Back
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organisim
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Organisims are living things.
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cell
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A cell is the basic unit of stucture and function in an organisim.
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unicellular
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Unicellular, or single-celled organisims, include bacteria, the most numerous organisims on earth.
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multicellular
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Multicellular oganisims are composed od manr cells.
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development
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Development is the process of becoming more complex organisim.
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stimulus
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A change in an organisim's surroundings that causes the organisim to react is called a stimulus.
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response
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An organisim reats to a stimulus with a responce-an action or change in behavior.
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reproduce
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To produce offspring that are similar to the parents
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spontaneous generation
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People once believed the mistaken idea that living things arise from nonliving sources.
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controlled experiment
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In a controlled exeriment, a scientist carries out two tests that are identical in every respect except for one factor, called the variable.
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variable
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A change
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autotroph
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Organisims that make their own food.
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heterotroph
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Organisims that cannot make their own food.
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homeostasis
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The maintenance of stable internal conditions despite changes in surroundings.
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