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These are aggregations of polyps that live symbiotically with algae and build calcium rich skeletons

This is the number of organisms that move into the population from another population and affects growth rate?

These are depressions on rocky shorelines that are flooded at high tide but retain water at low tide?

This is a treeless landscape that occurs at high latitudes or on mountain tops

This is an organism that has a broad niche?

This idea stated that we should not save forests because they are beautiful or for the future, but use them for the benefit of hose living now?

This person wrote Man and Nature, and as a result of their work, national forests were established in the United States?

These are bodies of water rich in nutrients with lots of primary production?

Long term patterns of temperature and precipitation?

These are primary consumers?