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Mod 5 Biodiv & Conse
Biodiversity and Conversation
| Question | Answer |
|---|---|
| Mass extinction | a large percentage of all living species become extinct in a relatively short period of time. |
| Background extinction | the gradual process of species becoming extinct |
| Ecosystem diversity | is the variety of ecosystem that are present in the biosphere. |
| Species diversity | the number of different species and the abundance of each species in a biological community |
| Genetic diversity | the variety of genes present in a population |
| Extention | occurs when the last member of the species dies |
| Biodiversity | a variety of like in one area that is determined by the number of different species in that area. |
| Natural resources | are all materials and organisms found in the biosphere. |
| Overexploitation | is the excessive use of a species that has economic value. |
| Habitat fragmentation | the separation of an ecosystem into small areas. |
| Edge effect | any different enviromental condition occuring along an ecosystem's boundaries. |
| Biological magnification | happens when pollutants build up to high levels in body tissues of carnivores. |