 
			 
			MCQOPTIONS
 Saved Bookmarks
				| 1. | Nitrifying bacteria can not be isolated directly by the usual techniques employed to isolate hetrotrophic bacteria. The reasons may be due to | 
| A. | slow growth | 
| B. | medium growth | 
| C. | fast growth | 
| D. | none of these | 
| Answer» B. medium growth | |