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level: 10.2 Diversity within a community

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level questions: 10.2 Diversity within a community

QuestionAnswer
Biodiversity- Variety of organisms in the living world
Habitat- Place where organism lives
Community- All populations of different species in a habitat
Three components of biodiversity- Species diversity - Genetic diversity - Ecosystem diversity
Species diversity- The no. of different species + the no. of individuals of each species within any 1 community
Genetic diversity- The no. of different alleles of genes in a species or population - Allows natural selection to occur
Ecosystem diversity- The range of different habitats, from a small local habitat to the whole of the Earth
Species richness- A measure of species diversity - No. of species in a particular area at a given time - Can use index to calculate it
Index of diversityd = N (N - 1)/Σ n(n - 1) d = index of diversity N = total no. of organisms of all species n = total no. of organisms of each species Σ = the sum of