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Chapter 1 Lesson 1

What is life

TermDefinition
organism A living thing
cell The basic unit of structure and function in living things
unicellular Made of a single cell
multicellular Consisting of many cells
metabolism 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
responce An action or change in behavior that occurs as a result of a stimulous
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 off spring that are genetically identical to the parents
sexual reproduction A reproductive process that involves two parents that combine their genetic material to produce a new organism which differs from both parents
spontaneous generation The mistaken idea that living things arise from non living sources
controlled experiment An experiment where only one variable is manipulated at one time
autotroph An organism that is able to capture energy from the sunlight or chemicals and use it to produce its own food
heterotroph A consumer that obtains energy by eating only plants
hemeostasis The condition in which an organism's internal environment is kept stable in spite of changes in the external environment
Created by: 0003673stu
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