Microbiology of Soils
Nitrogen oxidation (nitrification)refers to the

changing of atmospheric nitrogen (N2) to nitrogen compounds
conversion of ammonium ions into nitrates through the activities of certain bacteria.
sulfur is oxidized to the sulfate form through Thiobacillus bacteria
None of these

ANSWER DOWNLOAD EXAMIANS APP

Microbiology of Soils
A heterocyst is

the progenitor of cyanobacterial vegetative cells
a terminally differentiated cell that fixes nitrogen
a type of spore
a cell that carries out oxygenic photosynthesis

ANSWER DOWNLOAD EXAMIANS APP