The Ediacaran Period, an interval in Earth's history after the Snowball Earth glaciations but before the Cambrian radiations, marks the introduction of complex macroscopic organisms synchronously in unrelated groups. It has ...
Earth Sciences
Mar 20, 2012
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(PhysOrg.com) -- Plants need water to grow, but every hobby gardener knows that you shouldn’t carry this to excess either. During waterlogging or flooding, plants can’t take up enough oxygen that they urgently need ...
Cell & Microbiology
Oct 24, 2011
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(PhysOrg.com) -- When you think about the design team for an ultra-fuel efficient vehicle, on that can get more than one thousand miles per gallon of gas; you probably picture a professional design lab outfitted with the ...
A team of scientists, led by biogeochemists at the University of California, Riverside, has found new evidence linking "Snowball Earth" glacial events to the rise of early animals.
Earth Sciences
Oct 27, 2010
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Variations in the Earth's atmospheric oxygen levels are thought to be closely linked to the evolution of life, with strong feedbacks between uni- and multicellular life and oxygen. Over the past 400 million years the level ...
Earth Sciences
Aug 2, 2010
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The discovery in Gabon of more than 250 fossils in an excellent state of conservation has provided proof, for the first time, of the existence of multicellular organisms 2.1 billion years ago. This finding represents a major ...
Earth Sciences
Jun 30, 2010
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(PhysOrg.com) -- A fiber-optic sensor created by a team of Purdue University researchers that is capable of measuring oxygen intake rates could have broad applications ranging from plant root development to assessing the ...
Biochemistry
Sep 22, 2009
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(PhysOrg.com) -- Bacteria know that they are too small to make an impact individually. So they wait, they multiply, and then they engage in behaviors that are only successful when all cells participate in unison. There are ...
Condensed Matter
Jul 14, 2009
2
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