Search Results: "Autotroph"

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• 12:16 Popular

  Taxonomy: Life's Filing System - Crash Course Biology #19

  1,232 views / 0 likes - added 9 years ago

  Hank tells us the background story and explains the importance of the science of classifying living things, also known as taxonomy. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like CrashCourse on Facebook: http://www.facebook.com/You

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• 04:34 Popular

  Can Bacteria On Earth Help Us Find Alien Life?

  1,328 views / 6 likes - added 8 years ago

  Researchers have found organisms that are able to survive the most extreme conditions on earth. What can this tell us about life in space? Don't miss Telescope, premiering Feb. 20 at 9/8c on Discovery! Sign Up For The TestTube Newsletter Here ►►►►http://b

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