biosphere

Examples of biosphere in the following topics:

• Mars and a Biosphere

  • A biosphere is typically defined as the part of the Earth and its atmosphere capable of supporting life.
  • A biosphere can also be thought of as an global ecological system that incorporates all living beings and their relationships with the lithosphere, hydrosphere, and atmosphere.
  • Currently, a great deal of research is going into developing hypotheses on a Martian biosphere.

• The Carbon Cycle

  • Carbon dioxide leaves the atmosphere through photosynthesis, thus entering the terrestrial and marine biospheres.
  • Terrestrial Biosphere: The terrestrial biosphere includes the organic carbon in all land-living organisms, both alive and dead, as well as carbon stored in soils.
  • Marine Biosphere: The carbon cycle in the marine biosphere is very similar to that in the terrestrial ecosystem.
  • The carbon cycle describes the flow of carbon between the atmosphere, the biosphere, and the geosphere.
  • Outline the flow of carbon through the biosphere and abiotic matter on earth

• Sources and Sinks of Essential Elements

  • The element carbon moves from the biosphere to the geosphere and the hydrosphere.

• Overview of Bacterial Viruses

  • Bacteriophages are viruses that infect bacteria and are among the most common and diverse entities in the biosphere.
  • They are among the most common and diverse entities in the biosphere.
  • However, other phages occur abundantly in the biosphere, with different virions, genomes and lifestyles.

• Microbes and Ecosystem Niches

  • Microbes live in all parts of the biosphere where there is liquid water, including soil, hot springs, the ocean floor, acid lakes, deserts, geysers, rocks, and even the mammalian gut.
  • By virtue of their omnipresence, microbes impact the entire biosphere; indeed, microbial metabolic processes (including nitrogen fixation, methane metabolism, and sulfur metabolism) collectively control global biogeochemical cycling.

• Ocean Floor

  • Microorganisms, by their omnipresence, impact the entire biosphere.
  • For example, nitrogen which makes up 78% of the planet's atmosphere is "indigestible" for most organisms, and the flow of nitrogen into the biosphere depends on a microbial process called fixation.

• Microbial Environments and Microenvironments

  • They live and thrive in all parts of the biosphere where there is liquid water, including hostile environments such as the poles, deserts, geysers, rocks, and the deep sea.

• Electron Donors and Acceptors

  • In the present day biosphere, the most common electron donors are organic molecules.
  • Because of their volume of distribution, lithotrophs may actually out number organotrophs and phototrophs in our biosphere.

• Defining Microbes

  • Microorganisms live in all parts of the biosphere where there is liquid water, including soil, hot springs, on the ocean floor, high in the atmosphere, and deep inside rocks within the Earth's crust.

• Organization of Ecosystems

  • Rarely are ecosystems isolated from one another; rather, they should be considered parts of a larger functioning whole that together comprise the biosphere ("the place on Earth's surface where life dwells").