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Atmospheric nitrogen varies widely from location to location, and local shortages occur frequently. b. atmospheric nitrogen cannot be used by most organisms. c. there is very little free nitrogen in the air. d. atmospheric nitrogen exists primarily in the stratosphere and does not come into contact with terrestrial ecosystems.
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Restriction enzymes are used in making recombinant dna. describe the role restriction enzymes perform when constructing recombinant dna.
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Which of the following human activities resulted in the growth of the north american deer population?
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Atmospheric nitrogen varies widely from location to location, and local shortages occur frequently....
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