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MMLU / Keystone species are thought to have profound effects on the structure and…

Problem

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question

Keystone species are thought to have profound effects on the structure and composition of ecological communities because they

choices

  1. tend to reduce diversity by eliminating food resources for other species
  2. provide the foundation for food webs
  3. are more abundant than most other species in their communities
  4. can prevent superior competitors from driving inferior competitors to local extinction

subject

college_biology

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Source and history

Official source

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