MCQOPTIONS
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| 1. |
In nature, it is difficult to observe the effects density-independent limiting factors on real populations because density-independent limiting factors |
| A. | strike only dense populations. |
| B. | often have a greater effect on denser populations. |
| C. | usually do not have any effect on populations. |
| D. | usually affect only a small part of a habitat. |
| Answer» C. usually do not have any effect on populations. | |