WebApr 7, 2010 · Until now, the only life forms known to live exclusively in anoxic conditions were viruses, bacteria and Archaea. But in a new study, scientists have discovered three new multicellular marine... Metal-oxide-based life could therefore be a possibility under certain conditions, including those (such as high temperatures) at which carbon-based life would be unlikely. The Cronin group at Glasgow University reported self-assembly of tungsten polyoxometalates into cell-like spheres. See more Hypothetical types of biochemistry are forms of biochemistry agreed to be scientifically viable but not proven to exist at this time. The kinds of living organisms currently known on Earth all use carbon compounds for … See more On Earth, all known living things have a carbon-based structure and system. Scientists have speculated about the pros and cons of using atoms other than carbon to form the … See more In addition to carbon compounds, all currently known terrestrial life also requires water as a solvent. This has led to discussions about … See more A shadow biosphere is a hypothetical microbial biosphere of Earth that uses radically different biochemical and molecular processes than currently known life. Although life on … See more Perhaps the least unusual alternative biochemistry would be one with differing chirality of its biomolecules. In known Earth-based life, See more Arsenic, which is chemically similar to phosphorus, while poisonous for most life forms on Earth, is incorporated into the biochemistry of … See more Non-green photosynthesizers Physicists have noted that, although photosynthesis on Earth generally involves green plants, a variety of other-colored plants could also support photosynthesis, essential for most life on Earth, and that other colors might … See more
Biological Roles of Water: Why is water necessary for life?
WebJan 13, 2024 · Oxygen is a life-saving essential medicine with no substitution. Healthcare professionals use oxygen to treat respiratory illnesses like COVID-19 and pneumonia. Oxygen is also essential for … WebDec 3, 2016 · The relationship between oxygen and sulfur-reducers is simple–oxygen kills them. THey are usually obligatory anaerobes. That’s why they live in the mud at the … the long shot film
Hypotheses about the origins of life (article) Khan …
WebWith an environment devoid of oxygen and high in methane, for much of its history Earth would not have been a welcoming place for animals. The earliest life forms we know of … WebMay 5, 2024 · In a paper published today in the journal Nature Astronomy, she and her colleagues have observed in laboratory studies that microbes can survive and thrive in atmospheres that are dominated by... WebFeb 7, 2024 · All life on earth (or at least most of them) require oxygen, at least to form the organic molecules that build up life. We know that sulfur has similar chemical properties. … tickled pink charity number