Pre AP Biology -ECO 3.1 Importance of Biodiversity- MCQ Exam Style Questions -New Syllabus
Pre AP Biology -ECO 3.1 Importance of Biodiversity- MCQ Exam Style Questions – New Syllabus 2025-2026
Pre AP Biology -ECO 3.1 Importance of Biodiversity- MCQ Exam Style Questions – Pre AP Biology – per latest Pre AP Biology Syllabus.
▶️ Answer/Explanation
The correct answer is b. extirpated.
Extirpated refers to a species that no longer exists in a specific geographic area but survives elsewhere.
Extinct describes a species that has died out completely across the entire planet.
In this scenario, the species is gone from Canada but remains in the United States.
Therefore, it is locally extinct in Canada, which is the definition of extirpation.
Options c and d are incorrect because they describe the level of risk for a species still present in the area.
▶️ Answer/Explanation
The correct option is c.
Supporting services are fundamental processes that allow other ecosystem services to exist.
Water filtration by bivalves maintains the quality of the habitat for other aquatic life.
Options a, b, and d represent provisioning services because they involve extracted products.
Provisioning services provide physical goods like food, medicine, and raw materials.
Supporting services include nutrient cycling, soil formation, and primary production.
By filtering water, bivalves support the overall health and $100\%$ functionality of the ecosystem.
▶️ Answer/Explanation
The correct answer is d. traditional medicinal treatments.
Ecosystem services are divided into four categories: provisioning, regulating, supporting, and cultural.
Cultural services are the non-material benefits people obtain from ecosystems.
Educational, tourism, and spiritual benefits are all non-material and thus cultural.
Medicinal treatments involve the extraction of physical biological resources.
Because they provide a tangible product, they are classified as provisioning services.
Therefore, option d is the only choice that does not fit the cultural category.