I know from reading that a human in vacuum needs a space-suit to survive.
Is the body of any organism on Earth capable of living equally in vacuum, and on/below Earth's surface within the atmosphere?
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Adding to Noah's answer, some lichens can survive the vacuum of space too. In an experiment led by Leopoldo Sancho from the Complutense University of Madrid, two species of lichen - Rhizocarpon geographicum and Xanthoria elegans - were sealed in a capsule and launched on a Russian Soyuz rocket on 31 May 2005. The lichens were in perfect condition when observed after the return to earth.