Investigating Biodiversity

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The variety of living organisms in an area.


The area inhabited by a species. It includes physical factors such as soil and temperature range and the living biotic factors like availability of food or presence of predators. The number of different habitats in the area. 


A group of similar organisms able to reproduce to give fertile offspring. The number of different species and the abundance of each species in an area. 


The variation of alleles within a species or a population of species 

Collecting data

  • Choose an area to sample at random to increase representativeness. 
  • Record number of


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