| 21. | The net effect is to alter the balance of nature by increasing the concentration of anaerobic over aerobic species.
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| 22. | Having lost the trial, Montgomery cryptically warns Barry that a negative shift in the balance of nature is imminent.
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| 23. | The Isle Royale experience tells us that the balance of nature is a dynamic process, not the status quo,
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| 24. | The idea of a " balance of nature, " as I absorbed it years ago, was an appealing one.
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| 25. | Powell, a veterinarian, said the roundup is not only cruel, but also causes enormous damage to the balance of nature.
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| 26. | They also plan precautions to prevent genetically altered fish from upsetting the balance of nature, such as neutering the fish.
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| 27. | However, fair warning-- the'balance of nature'concept is simplistic and vague at best, and often misleading or wrong, depending on the system.
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| 28. | He sets the whale free after the animal kingdom revolts and he discovers that he has upset the balance of nature.
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| 29. | According to the rumor, the 26, 000 women at the Non-Governmental Organizations Forum upset the balance of nature and brought repeated rains.
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| 30. | "These species maintain countless others by ensuring the balance of nature both within and outside the protected areas, " the scientists wrote.
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