Microbiology of Soils
Nitrogen oxidation (nitrification)refers to the

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

ANSWER DOWNLOAD EXAMIANS APP

Microbiology of Soils
A heterocyst is

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

ANSWER DOWNLOAD EXAMIANS APP