biosphere
Noun
Meaning
the regions of the surface and atmosphere of the Earth (or other planet) where living organisms exist
Source: WordNetSynonyms
Show all synonymsAntonyms
Show all antonymsHypernyms
Related terms
Examples
A biosphere based on ammonia would likely exist at temperatures or air pressures that are extremely unusual in relation to life on Earth.
Accompanying the vast amount of archival footage is new interviews with the Biosphere 2 crew and those involved with their mission.
Biosphere main A planet's life forms inhabit ecosystems, whose total is sometimes said to form a "biosphere".
Because carbon uptake in the terrestrial biosphere is dependent on biotic factors, it follows a diurnal and seasonal cycle.
Biological effects Due to their sparse distribution in the earth's crust and low aqueous solubility, the lanthanides have a low availability in the biosphere, and are not known to naturally form part of any biological molecules.
Biologist E. O. Wilson estimated in 2002 that if current rates of human destruction of the biosphere continue, one-half of all plant and animal species of life on earth will be extinct in 100 years. citation E. O. Wilson repeats his estimation in 2012.