 
			 
			MCQOPTIONS
 Saved Bookmarks
				| 1. | Which of the following microorganism use H2S as the electron donor to reduce carbon dioxide? | 
| A. | <i>Chromaticum</i> | 
| B. | <i>Chlorobium</i> | 
| C. | Both (a) and (b) | 
| D. | <i>Rhodomicrobium</i> | 
| Answer» D. <i>Rhodomicrobium</i> | |