Biodiversity

The wide diversity and interrelatedness of earth organisms based on genetic and environmental factors.

The variability among living organisms from all sources, including, inter alia, terrestrial, marine and other ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species and of ecosystems. Synonyms: biological diversity, ecological diversity.

The variety and essential interdependence of all living things; it includes the variety of living organisms, the genetic differences among them, the communities and ecosystems in which they occur, and the ecological and evolutionary processes that keep them functioning.

The relative abundance and variety of plant and animal species and ecosystems within particular habitats

The species number, variety, and essential interdependence of all living things. Includes the number and variety of living organisms, the genetic differences among them, the communities and ecosystems in which they occur, and the ecological and evolutionary processes that keep them functioning.