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Chapter 1 Book 1

Organism: a living thing
Cell: the basic unit of structure and function in an organsism
unicellular: Made of a single cell
multicellular: consisting of many cells
stimulus: a change in an organismn's surroundings that cause the organsim to react
Response: an action or change in behavior that occurs as a result of a stimulus
development the process of change that occurs during an organisms life to produce a more complex organsim
spontaneous generation: The mistaken idea that living things arise from non living sources
controlled experiment: An experiment in which all factors are identical except one
autotroph: An organism that makes its own food
heterotroph: An organism that does not makes its own food
Homeostasis: the maintenance of stable internel conditions
Created by: graces2015