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Biological Environment > Protozoan Benefits

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This site tells the story of the history of the universe. Click Earlier and Later to follow the story. Note: Many facts have been simplified to make them easier to understand.

 
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Many protozoa eat bacteria, and so are important for passing the molecules they make up the food chain to other animals. This is vital since bacteria are the only living things able to fix nitrogen.
   
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Biological Environment > Protozoan Benefits

   

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