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Biodiversity: A basic understanding ...

Biodiversity is the variation of life forms within a given ecosystem , biome , or for the entire Earth . Biodiversity is often used as a measure of the health of biological systems . The biodiversity found on Earth today consists of many millions of distinct biological species , which is the product of nearly 3.5 billion years of evolution . Biologists most often define "biological diversity" or "biodiversity" as the "totality of genes, species, and ecosystems of a region". An advantage of this definition is that it seems to describe most circumstances and present a unified view of the traditional three levels at which biological variety has been identified:

350.org Global Work Party 10/10/10

Male' - Maldives Originally uploaded by 350.org