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Intro to biology

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Term
Definition
biology   the study of life  
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organization   the high degree of order within an organism's internal and external parts and in its interactions with the living world  
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cell   the smallest unit that can perform life processes  
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unicellular   organisms made up of one cell  
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multicellular   organisms made up of more than one cell  
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organs   structures that carry out jobs in the organ system  
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tissues   groups of cells with similar abilities and allow and organ to function  
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organelles   tiny structures that carry out functions for a cell  
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biological molecules   chemical compounds that provide physical structure and that bring movement  
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metabolism   the sum of all the chemical reactions that take place and transforms materials in an environment  
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domains   the three major subdivisions of organisms (bacteria, archea, and eukarya)  
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kingdoms   the system of grouping that divides life into six groups and is inside domains  
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ecology   the branch of biology that studies organisms interacting with each other in the environment  
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ecosystems   communities of living species and their physical environments  
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evolution   how organisms change over time  
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natural selection   animals with favorable traits I've longer than others with less favorable traits  
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adaptations   traits that improve an individuals ability to survive  
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metric system   the single and standard unit of measurement for scientists  
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base units   the seven fundamental units that describe quantities such as length, mass, and time  
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Created by: elizrhys
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