nitrogen cycle: Media
biochemistry
Videos
The importance of nitrogen and phosphorus in ecosystems
An overview of the nitrogen and phosphorus cycles in the biosphere.
Video: Encyclopædia Britannica, Inc.
Images
fava bean
Pods of the broad bean, or fava bean (Vicia faba). The symbioses of fava...
© Esin Deniz/stock.adobe.com
nitrogen cycle
The nitrogen cycle transforms diatomic nitrogen gas into ammonium, nitrate, and nitrite...
Encyclopædia Britannica, Inc.
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