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- Explain how biodiversity loss can impact crop diversity.
- Describe two types of compounds from living things that are used as medications.
- Describe the mechanisms by which human population growth and resource use causes increased extinction rates.
- Explain what extinction threats a frog living on a mountainside in Costa Rica might face.
- Describe two considerations in conservation preserve design.
- Describe what happens to an ecosystem when a keystone species is removed.
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