 
			 
			MCQOPTIONS
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				| 1. | The phenomenon of commensalism refers to a relationship between organisms in which | 
| A. | one species of a pair benefits | 
| B. | both the species of a pair benefit | 
| C. | one species of a pair is more benefited | 
| D. | none of the above | 
| Answer» B. both the species of a pair benefit | |