Definitions for "Biodiversity"
The variety of species and habitats within an ecosystem and the genetic variability within a species or population.
In its most general sense, biodiversity refers to all aspects of variety in the living world. Specifically, the term may be used to describe the number of species, the amount of genetic variation or the number of community types present in an area.
The variability among living organisms on the earth, including the variability within and between species and within and between ecosystems.
Keywords:  encarta, taken
Taken from Encarta
the sum of life-forms on our planet. Human activities threaten to cause a sharp decline in biodiversity that could reach the levels of the 'great extinctions' of geological history. This poses a serious threat to humanity because biodiversity is crucial for keeping our planet healthy - for instance through climate control, pollutant filtration, nutrient cycling and resistance to disease.
Keywords:  catalog, library
is not used in this library's catalog.
the total numbers of kinds of organisms on earth
the number and types of organisms in a region or environment.
the number of different kinds of organisms occurring in a particular place