How did NASA help to distinguish genetic factors from environmental ones when studying the effects of living space?(1 point)
By observing changes in retired astronauts over a period of ten years.
By running experiments on astronauts that were in space for over a year.
By analyzing changes in one twin on Earth and the other in space.
By introducing animals and other organisms that could be studied in space.
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How did NASA help to distinguish genetic factors from environmental ones when studying the effects o...
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