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Assessment
How do beavers contribute to plant diversity in riparian areas?
By creating wetlands that support more plant species
By eating all vegetation in the area
By causing soil erosion
By creating barriers that block sunlight
What type of vegetation is likely to increase in beaver-modified ecosystems?
Aquatic and wetland plants
Desert shrubs
Mountainous trees
Grassland flora
Which of the following is a direct effect of beaver dams on plant biodiversity?
Increasing nutrient cycling in the soil
Decreasing water availability
Promoting uniform vegetation types
Eliminating plant competition
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