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9 characteristics of Living things

respond to environment, reproduce, use energy, grow in size and cells, are made up of 1 or more cells, highly organized, evolve, have limited-shape, have a life span.


All chemical reactions in an organism needed to maintain life


a chemical reaction in which two or more simple substances combine to form a new, more complex substance

Responding to Stimuli allows an organism to

adjust to its environment

All organisms use and release



The regulation of an organisms internal environment to maintain conditions suitable for its survival.


results in an increase in the amount of living materials and the formation of new structures

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