The variety and genetic diversity of species and different ecosystems that they form is known as .未知题型
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Biodiversity is solely determined by the number of species in a community.
Biodiversity is the variety of life and its processes.
Question at position 4 One reason to be concerned with the health and stability of an ecosystem is that it will be better able to provide humans important services like cleaner water and air. What aspect of an ecosystem is an indicator its heath? Species richnessBiome typeGeographic extentProximity to human developmentAnnual rainfall
Scientists have documented and described more than 1.5 million species on Earth. This number _________________________.
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