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Assessment
What is the primary benefit of biodiversity in an ecosystem?
Increased resilience to environmental changes
Higher population density of a single species
Reduction in the number of species present
Simplification of food webs
Which of the following best describes the relationship between biodiversity and ecosystem services?
Biodiversity is irrelevant to ecosystem services.
High biodiversity typically enhances the provision of ecosystem services.
Ecosystem services depend solely on dominant species.
Lower biodiversity is always more beneficial for ecosystem services.
What role do keystone species play in maintaining ecosystem resilience?
They outcompete all other species for resources.
They have a disproportionately large impact on their environment relative to their abundance.
They are always the largest species in an ecosystem.
They only exist in tropical rainforests.
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