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microbiology microbiology of soils
1. The groups of symbiotic bacteria, which have the ability to fix nitrogen
(A): all of the above
(B): derive their food and minerals from the legume, and in turn they supply the legume with some or all of its nitrogen
(C): grow together for a mutual benefit is called symbiosis and so these bacteria are called symbiotic nitrogen-fixing bacteria
(D): these bacteria are from the genus, Rhizobium
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