10. The word pales in the passage is closest in meaning to
○Increases proportionally
○Differs
○Loses significance
○Is common
Paragraph 7:Many ecologists now think that the relative long-term stability of climax communities comes not from diversity but from the patchiness of the environment, an environment that varies from place to place supports more kinds of organisms than an environment that is uniform. A local population that goes extinct is quickly replaced by immigrants from an adjacent community. Even if the new population is of a different species, it can approximately fill the niche vacated by the extinct population and keep the food web intact.
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