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Assessment
What is the primary source of biodiversity in freshwater habitats?
Genetic diversity among species
Coastal ecosystems
Urban development
Deserts
Which of the following organisms plays a critical role in maintaining freshwater biodiversity?
Beavers
Cacti
Fungi on land
Pine trees
What is a significant threat to biodiversity in freshwater habitats?
Invasive species
Natural thermal springs
Nitrogen-fixing bacteria
Erosion of riverbanks
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