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DSST Env.Sci. Chp 10
vocab. for DSST Env.Sci. from Environmental Science by Karen Arms
| Question | Answer |
|---|---|
| biodiversity | term used to indicate the number and diversity of species on Earth |
| Biodiversity Treaty | agreement resulting from the Earth Summit that encourages wealthier countries to give money to poorer countries for the protection of potentially valuable species |
| captive-breeding program | breeding endangered or threatened species in zoos and wild animal parks |
| Convention on International Trade in Endangered Species (CITES) | offshoot of the IUCN that is responsible for limiting the sale of ivory and the killing of elephants |
| ecosystem approach | conservation method that concentrates on protecting an entire ecosystem |
| endangered species | a species whose numbers have fallen so low that it is likely to become extinct in the near future |
| Endangered Species Act | 1973 act of U.S. Congress designed to protect any plant or animal species in danger of extinction |
| exotic species | species that is not native to a particular region |
| genetic disorder | a condition caused by abnormal genes that negatively affects an organisms form or function; may be caused by inbreeding |
| germ plasm | genetic material contained within the reproductive cells of organisms |
| infectious disease | disease that can be transmitted to another member of the species |
| International Union for the Conservation of Nature and Natural Resources (IUCN) | a collaboration of almost 200 governments and over 500 conservation organizations to protect species and habitats |
| keystone species | species of great importance to an ecosystem because its loss might cause the complete collapse of the ecosystem |
| mass extinction | extinction of many species during a relatively short period of time |
| melaleuca tree | tree imported from Australia to Florida that is threatening the existence of native plants |
| native species | as opposed to exotic species, this is original to a particular region |
| poaching | illegal hunting |
| threatened species | species likely to become endangered if protective measures are not taken immediately |