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Chapt 1 lesson 1

What is life?

TermDefinition
Cell The basic unit of structure function in living things
Organism A living thing
Unicellular Made of a single cell
Multicellular Consisting of many cells
Metabolisim The combination of chemical reactions through which an organism builds up or breaks down materials.
Stimulus Any change or signal in the environment that can make an organism react in some way.
Response An action or change in behavior that occurs as a result of a stimulus.
Development The process of change that occurs during an organism's life to produce a more complex organism.
Asexual Reproduction A reproductive process that involves only one parent and produces offspring that are genetically identical to the parent.
Sexual Reproduction A productive process that involves two parents that combine their genetic material to produce a new organism.
Spontaneous Generation The mistaken idea that living things arise from non-living sources.
Controlled Experiment An experiment in which only one variable is manipulated at a time.
Autotroph An organism that is able to capture energy from sunlight or chemicals and use it to produce it's own food.
Heterotroph An organism that cannot make its own food and gets food by consuming living things.
Homeostasis The condidtion in which an organism's internal environment is kept stable in spite of changes in the external environment.
Created by: 0003832stu
 

 



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