What is a biosphereA biosphere is one large ecosystem

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mbio | Student | (Level 2) eNoter

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The biosphere is all the living organisms and environment on earth, extending a short distance into the atmosphere and a short distance into the earth. Biosphere 2 was an interesting experiment in the Arizona desert to test if man could survive if isolated in domes, it was named that after the real biosphere-the portion of earth with life.

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projayjay | Student, Grade 9 | (Level 1) eNoter

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The biosphere is the global sum of all ecosystems. It can also be called the zone of life on Earth, a closed (apart from solar and cosmic radiation) and self-regulating system. From the broadest biophysiological point of view, the biosphere is the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, hydrosphere and atmosphere. The biosphere is postulated to have evolved, beginning through a process of biogenesis or biopoesis, at least some 3.5 billion years ago.

 

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fpschamps | High School Teacher | (Level 1) eNoter

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The biosphere is the area of earth in which living organisms can survive. It includes both the atmosphere and the earth itself. It includes all of the ecosystems on Earth.

Additionally, there are man-made biospheres where scientific experiments are conducted within a controlled ecosystem. (See Biosphere 2 in Arizona).

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