Microbiology of Soils
A heterocyst is

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

ANSWER DOWNLOAD EXAMIANS APP

Microbiology of Soils
The groups of symbiotic bacteria, which have the ability to fix nitrogen

these bacteria are from the genus, Rhizobium
derive their food and minerals from the legume, and in turn they supply the legume with some or all of its nitrogen
grow together for a mutual benefit is called symbiosis and so these bacteria are called symbiotic nitrogen-fixing bacteria
All of these

ANSWER DOWNLOAD EXAMIANS APP