Rhizobium is a kind of A)Photosynthetic bacteria B)Symbiotic bacteria C)Parasitic bacteria D)Saprophytic bacteria
Option B) Rhizobia are soil bacteria that fix nitrogen after becoming established inside root nodules of legumes. They are the only nitrogen-fixing bacteria living in a symbiotic relationship with legumes. Common crop and forage legumes are peas, beans, clover, and soy.
