click below
click below
Normal Size Small Size show me how
3.3 Biodiversity
Term | Definition |
---|---|
extinction | the disappearance of all members of a species from Earth |
captive breeding | the mating of animals in zoos or wildlife preserves |
habitat destruction | the loss of a natural habitat |
gene | a structure in an organism's cells that carries hereditary information |
threatened species | a species that could become endangered in the near future |
poaching | illegal killing or removing of wildlife from their habitats |
biodiversity | the number of different species in an area |
habitat fragmentation | the breaking of a habitat into smaller, isolated species |
endangered species | a species in danger of becoming extinct |
keystone species | a species that influences the survival of many others in an ecosystem |