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snowandbeachgir
Dec 19, 2008, 01:47 PM
Why are nitrogen and phosphorus essential to living organisms

eyalwu
Feb 3, 2009, 06:33 AM
Nitrogen and phosphorus essential to living organisms because they are used as building blocks for organic matter.

Nitrogen, for example, essential to the production of proteins. Phosphorus is essential to the production of DNA, bones, and energy storage molecules.