743550
| Question | Answer |
| Habitat | the place where an organism lives including the non living factors as well as the other species that live there |
| Species | a group of organisms whose members are similar to each other and can interbreed to produce fertile offspring |
| Biodiversity | the number and range of different species to be found in the world, the genes they carry and the habitats in which they live |
| habitat diversity | the number of different habitats in an area |
| species diversity | the number of different species and the abundance of each species in an area |
| genetic diversity | the variation of alleles within a species |
| abundance | number of |
| distribution of species | where the species are found in a habitat |
| species richness | the number of different species present in a habitat |
| species evenness | a measure of the relative abundance of individuals in each species |
| simpsons index of diversity | a formula used to measure the diversity of a habitat, taking into account both evenness and richness |
| extinction | the death of the last member of a species |
| endangered species | the population of the species is so low that there is a likely risk of extinction |
| critically endangered species | the population of the species is so low that the species will become extinct |
| in situ conservation | conserving a species in its natural environment |
| ex situ conservation | conservation in artificially created environments |
| keystone species | a species that plays a critical role in maintaining the structure of an ecological community, whose impact on the community is greater than expected based on its relative abundance |
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