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Alteration of body length of space-flown C. elegans. (a) Microscopic image of worms grown on the 1 G centrifuge for 4 days. (b) Microscopic image of worms grown in microgravity for 4 days. The worms in both conditions had normal levels of eggs in their bodies. (c) The mean of body length of the worms grown at 1 G was 1.45±0.09 mm, and for microgravity was 1.37±0.05 mm, respectively (n=15, means±s.d.). **P⩽0.01, Welch’s t-test. Scale bars indicate 0.5 mm.
