Today’s the day for Science on Google+’s #Newtonmas hangout at 6 pm!
Wildlife Biologist Carin Bondar of National Geographic and Scientific American will join bring a fresh element of “physical” to today’s hangout with MinutePhysics and Veritasium . Hosted by Amy Robinson and Jason Davison . You won’t want to miss it. RSVP and add your questions to the event page at http://goo.gl/xha10T
Carin Bondar: Reproduction and survival in the animal kingdom
diversity love it
Carbon is the 4th most common element in the Universe.
The amount of carbon on Earth is effectively constant. Thus, processes that use carbon must obtain it somewhere and dispose of it somewhere else. The paths that carbon follows in the environment make up the carbon cycle.
For example, plants draw carbon dioxide out of their environment and use it to build biomass, as in carbon respiration or the Calvin cycle, a process of carbon fixation.
Some of this biomass is eaten by animals, whereas some carbon is exhaled by animals as carbon dioxide. The carbon cycle is considerably more complicated than this short loop; for example, some carbon dioxide is dissolved in the oceans; dead plant or animal matter may become petroleum or coal, which can burn with the release of carbon, should bacteria not consume it.
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