NASA helped to distinguish genetic factors from environmental ones when studying the effects of living in space by analyzing changes in one twin on Earth and the other in space. This study, known as the "Twin Study," compared the genetic and physiological changes between astronaut Scott Kelly, who spent nearly a year in space, and his identical twin brother Mark Kelly, who remained on Earth.
How did NASA help to distinguish genetic factors from environmental ones when studying the effects of living space?(1 point) Responses 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. 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 introducing animals and other organisms that could be studied in space.
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