Yahoo Web Search

  1. Nitrogen -fixing prokaryotes require only light, water, CO2, N2...able to convert N2 to NH3, making in this way atmospheric/inorganic nitrogen available to themselves some of them also to other organisms...

    2 Answers · Science & Mathematics · 12/02/2011

  2. Nitrogen cycle! http://en.wikipedia.org/wiki/ Nitrogen _ fixation Nitrogen fixation is a means by which bacteria...

    1 Answers · Science & Mathematics · 15/03/2012

  3. ...on plants and they absorb nitrogen from them...http://en.wikipedia.org/wiki/ Nitrogen _ fixation

    3 Answers · Science & Mathematics · 14/12/2011

  4. ...via the process of decay, and from the atmosphere into plants via the process of nitrogen fixation . Many of the atoms in our bodies are of course...

    1 Answers · Science & Mathematics · 15/05/2010

  5. ...essential for photosynthesis and further growth.[1] Processing, or fixation , is necessary to convert gaseous nitrogen into forms usable by living organisms. Some fixation ...

    2 Answers · Science & Mathematics · 29/09/2007

  6. ...where they can exist in a moist environment. Scientists estimate that biological fixation globally adds approximately 140 million metric tons of nitrogen to ecosystems every year.

    1 Answers · Science & Mathematics · 27/04/2011

  7. ...hectare per year. This represents an enormously larger rate of nitrogen input than occurs naturally by atmospheric deposition and dinitrogen fixation , and it is also much larger than the rates in which ammonium and...

    1 Answers · Science & Mathematics · 28/02/2011

  8. ... (some sponges are capable of photosynthesis and nitrogen fixation though).[4] They are also distinguished from plants...

    1 Answers · Science & Mathematics · 21/03/2009

  9. Pls.try visiting below website: http://www.fotosearch.com/photos-images/ecology.html

    2 Answers · Science & Mathematics · 24/11/2008

  1. Try asking your question on Yahoo Answers