Biodiversity is a contraction of biological diversity. Biodiversity reflects
the number, variety and variability of living organisms.
It includes diversity within species (genetic diversity), between species
(species diversity), and between ecosystems (ecosystem diversity).
Source: GreenFacts
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Biodiversity is the variability among living organisms from all sources,
including terrestrial, marine, and other aquatic ecosystems and the ecological
complexes of which they are part.
