How is nitrogen removed from sewage?

They use a tube that has oxygen in it to transfer away the nitrogen

Nitrogen is removed from sewage by the following... Organic-nitrogen is converted to ammonia-nitrogen (NH4) by a mostly anaerobic process called Ammonification... Secondly, Ammonia-nitrogen (NH4) is converted to nitrate-nitrogen (NO3) by an aerobic biological process called nitrification... Last but not least Nitrate-nitrogen (NO3) is converted to nitrogen gas biologically in a low-oxygen (anoxic) environment. During denitrification, nitrogen gas bubbles harmlessly out of wastewater into the atmosphere.

Cell division is important to single celled organisms because it allows the cells to reproduce. through cell division, cells make exact copies of themselves. when single celled organisms go through cell division, they make exact copies of themselves which is how they reproduce.

Diagrams for sure 67(8? ; 4