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bacteria that convert nitrogen in the air into compounds such as nitrites, nitrates and ammonia. Microorganisms that fix nitrogen are bacteria called diazotrophs. Examples of these bacteria are Cyanobacteria, green sulfur bacteria, Azotobacteraceae and Rhizobia.bacteria that convert nitrogen in the air into compounds such as nitrites, nitrates and ammonia. Microorganisms that fix nitrogen are bacteria called diazotrophs. Examples of these bacteria are Cyanobacteria, green sulfur bacteria, Azotobacteraceae and Rhizobia.bacteria that convert nitrogen in the air into compounds such as nitrites, nitrates and ammonia. Microorganisms that fix nitrogen are bacteria called diazotrophs. Examples of these bacteria are Cyanobacteria, green sulfur bacteria, Azotobacteraceae and Rhizobia.
the tube that carries urine from the nephrons to the ureter via the renal pelvis.
a biological classification group (taxon) that is divided into families.
long threads of genetic material (DNA and histone) found in the nucleus of a non-dividing cell...
extremely hard, calcium-rich substance which covers the crown of the tooth.