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Science
Biology
Ecology or Ecosystems
All Subcategories (11)
Carbon Sink
Energy flow and trophic levels
Fire Effects or Fire Ecology
Impacts of Oil on Ocean Ecosystems
Interactions between vegetation and wildlife
Invasive Species
Nutrient Cycling
Resources
Trophic levels or Biomass dynamics
Water Cycle
Wetland ecosystems
Parent Categories (6)
Biology
Biology or Science
Science & Environment
Science or Biology
Science or Earth Science
Science or Environmental Science