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Biology, 08.12.2021 22:50 Arneis

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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