The zone of air, land and water at the surface of the Earth where an organism exists

All the members of species within a particular area

Populations that interact among themselves and the environment

Biological community together with other organisms and with the physical and chemical environment

Total number of and relative abundance of species, the variability of their genes and the different ecosystems in which they live

The death of a species or larger classification category

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How the biosphere...

How the biosphere is organized Mader 1.2

Word	Definition
Biosphere	The zone of air, land and water at the surface of the Earth where an organism exists
Population	All the members of species within a particular area
Community	Populations that interact among themselves and the environment
Ecosystem	Biological community together with other organisms and with the physical and chemical environment
Biodiversity	Total number of and relative abundance of species, the variability of their genes and the different ecosystems in which they live
Extinction	The death of a species or larger classification category