Environment & Ecology · Environmental Ecology
Which of the following best defines a 'keystone species' in an ecosystem?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1An endangered species bred in captivity to control primary producer biomass
- 2The most numerically abundant species present within a given trophic level
- 3A species that exerts strong control on community structure relative to its abundance✓
- 4An invasive species that dominates urban habitats and alters infrastructure
Correct answer
A species that exerts strong control on community structure relative to its abundance
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