Why Do Plants & Animals Need Nitrogen?

All plants and animals need nitrogen to create amino acids, proteins and DNA, which can be found in cells.

Keywords: plants and animals, nitrogen, nitrates and ammonium

About this Author

Angie Briggs has been a health and fitness writer since 2006. Her articles have been published on eHow, LIVESTRONG.COM and GardenGuides. She graduated from Thompson Institute with a diploma as a computer support specialist and received certification from CareerStep as a medical transcriptionist and medical language specialist.