21.   They also plan precautions to prevent genetically altered fish from upsetting the balance of nature, such as neutering the fish.

22.   This is a wide-open season in which Michael Jordan came out of retirement and upset the balance of the entire NBA power structure.

23.   This week such groups warned the developer against upsetting that balance.

24.   Using both basils, in a proportion of one to one, added the mysterious note of cinnamon and sandalwood we were after without upsetting the balance.

25.   Unless the United States tries to upset the balance, that is.

26.   Opponents say the reform could upset the balance that currently often results in a president of one party serving at the same time as a government of another.

27.   But playing Henry out on the right could upset the balance between Zidane and Youri Djorkaeff at the heart of any French attack.

28.   But, he worried that a belligerent India would easily upset the balance.

29.   Go beyond and we upset the balance.

30.   Goh said that upheaval in Southeast Asia could easily affect China and Japan, unsettling their economies and upsetting the balance between them.