Early Earth
Living Cells originated at a time when the atmosphere and environment were different to those presently found on earth
Archaea are single cell micro-organisms with no nucleus, it use anaerobic respiration (able to living in the absence of Oxygen) and live in extreme environment/condition such as high temperature, acid-rich, saline area etc. those environment are rich in minerals but hazardous to other organisms. Archaea’s population decreased after earth filled with oxygen, other than that, current archaea is very same as ancient archaea.
Archaea like to live near Black Smoker (volcanoes under ocean) due to the amount of carbon dioxide, high temperature and rich mineral it provide.
Archaea is important in our ecosystem and it carry out methanogenesis cycle and nitrogen cycle. Methanogenesis cycle convert carbon Dioxide to methane, nitrogen cycle convert of nitrogen in the atmosphere into biological nitrogen.
Cyanobacteria are single-celled organism lived in water and soil, it can tolerate great ranges in salinity and temperature. Mostly found around open area where sunlight are presented.
Cyanobacteria were also the first organisms use photosynthesis on Earth which release oxygen as waste product, because of that, they tiled the balance of early Earth dramatically by increase oxygen level and reduce carbon dioxide.
After iron filled with oxygen to form rust, more oxygen released in atmosphere to form ozone to protect cells from UV-ray and Earth become more suitable for life.
The evolution of photosynthesis shift the balance of gases in the atmosphere
Banded iron formation support the theory that photosynthesis shifted the balance of gases in the atmosphere. BIF are sedimentary rock formed when oxygen start to formed, it contain thin layer of iron oxide (using the first fresh-made oxygen from Cyanobacteria’s photosynthesis to form rust) and silica (skeleton of anaerobic organism poisoned by oxygen) settled under ocean, these Formation occur around 2
Archaea are single cell micro-organisms with no nucleus, it use anaerobic respiration (able to living in the absence of Oxygen) and live in extreme environment/condition such as high temperature, acid-rich, saline area etc. those environment are rich in minerals but hazardous to other organisms. Archaea’s population decreased after earth filled with oxygen, other than that, current archaea is very same as ancient archaea.
Archaea like to live near Black Smoker (volcanoes under ocean) due to the amount of carbon dioxide, high temperature and rich mineral it provide.
Archaea is important in our ecosystem and it carry out methanogenesis cycle and nitrogen cycle. Methanogenesis cycle convert carbon Dioxide to methane, nitrogen cycle convert of nitrogen in the atmosphere into biological nitrogen.
Cyanobacteria are single-celled organism lived in water and soil, it can tolerate great ranges in salinity and temperature. Mostly found around open area where sunlight are presented.
Cyanobacteria were also the first organisms use photosynthesis on Earth which release oxygen as waste product, because of that, they tiled the balance of early Earth dramatically by increase oxygen level and reduce carbon dioxide.
After iron filled with oxygen to form rust, more oxygen released in atmosphere to form ozone to protect cells from UV-ray and Earth become more suitable for life.
The evolution of photosynthesis shift the balance of gases in the atmosphere
Banded iron formation support the theory that photosynthesis shifted the balance of gases in the atmosphere. BIF are sedimentary rock formed when oxygen start to formed, it contain thin layer of iron oxide (using the first fresh-made oxygen from Cyanobacteria’s photosynthesis to form rust) and silica (skeleton of anaerobic organism poisoned by oxygen) settled under ocean, these Formation occur around 2
Bibliography: ------------------------------------------------- (Viewed on February 25 2011) URL <http://www.cosmographica.com/gallery/portfolio2007/content/297_EarlyEarth_large.html> (Viewed on February 25 2011) Lisa Gardiner “Archaea” 2004 (Online) – (Viewed on February 25 2011) “Cyanobacteria” (Online) – (Viewed on February 25 2011) Dennis Kunkel “Cyanobacterium” 2004 (Online) – (Viewed on February 26 2011) Kenneth Todar “Bacteria and Archaea and the Cycles of Elements in the Environment” 2011 (Online) – (Viewed on February 25 2011) Mr Gordon Ramel “The Earth Life Web, the Archaea” (Online) – (Viewed on February 27 2011) “Archaea Active in Evolv nutraceutical water” (Online) – (Viewed on February 27 2011) Christine Lehman “Role of Photosynthesis in Nature” (Online) – (Viewed on February 28 2011) Rhonda Chalmers “Banded Iron Formations” 2010 (Online) – (Viewed on February 28 2011) “The Formation of Iron - Minerals Downunder - Australian Mines Atlas” (Online) – (Viewed on February 28 2011) “The Greenhouse Effect” (Online) – (Viewed on February 28 2011) Anthony Watts “CO2, Temperatures, and Ice Ages | Watts Up With That?” 2009 (Online) – (Viewed on March 3 2011) “Global Warming :: Environmental Facts :: Young People 's Trust for the Environment” (Online) – (Viewed on March 2 2011) David Heffernan, Rob Mahon, John MacDougall, Kylie Gillies published in 2002 “Spotlight, earth and environmental science”– ------------------------------------------------- (Viewed on March 2 2011)