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| Define biodiversity. | The sum total of the genetically based variety of all organisms in the biosphere. |
| What is ecosystem diversity? | It includes the variety of habitats, communities, and ecological processes in the living world. |
| What is species diversity? | The number of different species in the biosphere. |
| What is genetic diversity? | The sum total of all the different forms of genetic information carried by all organisms living on Earth today. |
| What is biodiversity as one of Earth's greatest natural resources? | Species of many kinds provide us with foods, industrial products, and medicines. |
| Define extinction. | It's when a species disappears from all or part of its range. |
| What's an endangered species? | It's a species whose population size is declining in a way that places it in danger of extinction. |
| Define habitat fragmentation. | It's when development splits ecosystems into pieces, so they are like isolated islands. |
| What does CITES stand for? | Convention on International Trade in Endangered Species |
| What is biological magnification? | A process where concentrations of a harmful substance increase in organisms at higher trophic levels in a food chain or food web. It affects the entire food web, but top-level carnivores are at highest risk. |
| What's an invasive species? | They're plants & animals that have migrated to places where they are not native. |
| What is conservation? | It's the wise management of natural resources, including preservation of habitats and wildlife. |
