MCQOPTIONS
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				| 1. | 
                                    Predators can influence the structure of a community because their removal from the community causes a catastrophic change in the composition and structure of the rest of the community. What are the predators called because of this? | 
                            
| A. | Keystone species | 
| B. | Oppourtunists | 
| C. | Coevolutionists | 
| D. | Edge species | 
| Answer» E. | |