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bgzhoumi bgzhoumi
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6 years ago
Which marine ecosystem has the highest average net primary productivity?
 
  A) Algae beds and coral reefs
  B) Estuaries
  C) Freshwater swamp and marsh
  D) Open Ocean
  E) Upwelling zone
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wrote...
6 years ago
A
bgzhoumi Author
wrote...
6 years ago
Good timing, thanks!
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