MCQOPTIONS
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				| 1. | 
                                    Why have top predators (consumers at the top of the food chain), such as the cheetah and the tiger, always had smaller populations than organisms lower in the food chain? | 
                            
| A. | Hunted by humans | 
| B. | Low birth rate | 
| C. | Limited energy availability | 
| D. | None of the above | 
| Answer» E. | |