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1 
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 a pure substance composed of two or more elements whose composition is constant 
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2 
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the capacity of an organism or a tissue to withstand the effects of a harmful environmental agent 
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3 
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pertaining to the study of all the metabolites present in cells, tissues, and organs 
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4 
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present in great quantity, plentiful 
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6 
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a slang term for hydraulic fracturing 
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8 
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the observation and measurement of wavelengths of light or other electromagnetic radiation 
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1 
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collective term for a set of laboratory techniques for the separation of mixtures 
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4 
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a violent attack 
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5 
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strikingly new, unusual, or different 
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7 
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a group of organisms of the same species, having distinctive characteristics but not usually considered a separate breed or variety 
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9 
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group whose members have one or more similar characteristics  
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10 
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to excavate, extract 
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11 
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an amount  produced or supplied, output 
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