What are he two processes that must occur to phosphates before they can cycle directly from organisms to the exchange pool and back to organisms?

1 answer

Since this is not my area of expertise, I searched Google under the key words "phosphate cycle organisms" to get these possible sources:

http://en.wikipedia.org/wiki/Phosphorus_cycle
http://www.biolbull.org/cgi/reprint/72/2/190.pdf
http://www.enviroliteracy.org/article.php/480.html
http://www.bookrags.com/research/phosphorus-cycle-woc/
http://www.scionline.org/index.php/Phosphorus_Cycle

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.

I hope this helps. Thanks for asking.