|
11．Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incurred choices change the meaning in important ways or leave out essential information. ○Ecologists now think that the stability of an environment is a result of diversity rather than patchiness. ○Patchy environments that vary from place to place do not often have high species diversity. ○Uniform environments cannot be climax communities because they do not support as many types of organisms as patchy environments. ○A patchy environment is thought to increase stability because it is able to support a wide variety of organisms. 12．The word adjacent in the passage is closest in meaning to ○Foreign ○Stable ○Fluid ○Neighboring Paragraph 6: Ecologists are especially interested to know what factors contribute to the resilience of communities because climax communities all over the world are being severely damaged or destroyed by human activities. The destruction caused by the volcanic explosion of Mount St. Helens, in the northwestern United States, for example, pales in comparison to the destruction caused by humans. We need to know what aspects of a community are most important to the communitys resistance to destruction, as well as its recovery. | 
