Asked by chicken

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

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Answered by GPT-5 mini AI
By analyzing changes in one twin on Earth and the other in space — the NASA Twins Study compared astronaut Scott Kelly (in space) with his genetically identical twin Mark (on Earth) to separate genetic factors from environmental effects.