How do keystone species differ from indicator species?
What will be an ideal response?
Indicator species provide warnings about damage to ecosystems, though they need not be vital to the overall health of the ecosystem. Keystone species have a large effect on the type and abundance of other species in an ecosystem, however, they may indicate when a ecosystem has been damaged.
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The production of hydropower is most strongly associated with
A) river resources. B) ground water resources. C) lake resources. D) arid environments. E) tropical environments.
The long-term average from daily weather measurements is
A) weather. B) global warming. C) climate. D) insolation. E) climograph.
What is the dominant organism colonizing bare rock during primary succession?
A. lichens B. algae C. bacteria D. submergent plants
What is the reason that coasts such as those in Canada, north Britain, and Scandinavia have been uplifted?
A. The crust is rebounding after the recession of glaciers. B. The crust has uplifted due to plate tectonics. C. The ocean crust has subsided. D. The sea level has fallen.