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rachel314 rachel314
wrote...
Posts: 3
Rep: 0 0
9 years ago
Relative to agriculture, insects are usually ________.
      
-keystone species
      
-invasive species
      
-genetically modified species
      
-essential pollinators and predators for sustainable systems
      
-harmful herbivores that need to be eliminated
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Educator
9 years ago
essential pollinators and predators for sustainable systems
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