Biosphere

Noun

 * 1) The portion of the Earth and its atmosphere that can support life.
 * 2) The part of the Earth and its atmosphere capable of supporting life
 * 3) The totality of living organisms and their environment

Thesaurus
aerosphere, all that lives, atmosphere, biochore, biocycle, biota, biotope, brawn, ecosphere, fiber, flesh, flora and fauna, gaseous envelope, geography, geosphere, globe, lift, living matter, living nature, mother earth, noosphere, organic matter, organic nature, organized matter, plasm, terra, terrestrial globe, the blue planet, this pendent world, tissue, vale, vale of tears, welkin, whole wide world, world