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Index of Diversity

AQA AS-level BiologyBiodiversityLesson 9 of 33

Biodiversity is the term used to describe the variety of living organisms and the variety of ecosystems in a particular area.

Species richness is the number of different species in a particular area at a given time.

Species diversity refers to the number of different species and the number of individuals of that species within a community.

Diagram

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Key terms in this lesson

gene
A length of DNA that codes for a polypeptide or a functional RNA molecule, at a specific locus on a chromosome.
species
A group of organisms with similar characteristics that can interbreed to produce fertile offspring.

More in Biodiversity

All 33 lessons in Biodiversity · All AQA AS-level Biology topics