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Assessment
What is the term used to describe the variety of life in a particular habitat or ecosystem?
Biodiversity
Sustainability
Ecosystem service
Carrying capacity
Which of the following is a primary threat to freshwater biodiversity?
Invasive species
Organic farming
Wildfire
Ecotourism
What role do keystone species play in freshwater ecosystems?
Maintaining the structure of the ecosystem
Providing food for all species
Regulating water temperature
Enhancing sedimentation rates
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