Question distri
| Region (Overall) | Provisioning (75%) | Regulating (21%) | Cultural (4%) |
|---|---|---|---|
| West | 73% | 27% | 0% |
| North | 88% | 12% | 0% |
| South | 79% | 14% | 7% |
| East | 83% | 6% | 11% |
| Central | 33% | 67% | 0% |
To assess the impact of invasive species on ecosystems in Africa, Benis N. Egoh and colleagues reviewed government reports from those nations about how invasive species are undermining ecosystem services (aspects of the ecosystem on which residents depend). The services were sorted into three egories: provisioning (material resources from the ecosystem), regulating (natural processes such as cleaning the air or water), and cultural (nonmaterial benefits of ecosystems). Egoh and her team assert that countries in each region reported effects on provisioning services and that provisioning services represent the majority of the reported services.
Which choice best describes data from the table that support Egoh and colleagues’ assertion?
Provisioning services represent 73% of the services reported for the West region and 33% of those for the Central region, but they represent 75% of the services reported overall.
None of the percentages shown for provisioning services are lower than 33%, and the overall percentage shown for provisioning services is 75%.
Provisioning services are shown for each region, while no cultural services are shown for some regions.
The greatest percentage shown for provisioning services is 88% for the North region, and the least shown for provisioning services is 33% for the Central region.
Distribution of Ecosystem Services Affected by Invasive Species by Service Type Region (Overall) Provisioning (75%)
Hard-difficulty · SAT Reading & Writing · Command of Evidence — Choosing the strongest supporting line or detail. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
Choice B is the best answer. The finding that all the regions reported at least some effects on provisioning services supports the first part of the assertion. And the fact that provisioning services comprise 75% of the reported services overall supports the second part of the assertion.
Choice A is incorrect. This choice doesn’t fully support the assertion. It doesn’t include the finding that all the regions (not just Central and West) reported at least some effects on provisioning services. Choice C is incorrect. This choice doesn’t fully support the assertion. It doesn’t demonstrate that provisioning services represent the majority of the reported services overall. Choice D is incorrect. This choice doesn’t fully support the assertion. It doesn’t demonstrate that provisioning services represent the majority of the reported services overall.
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