How did NASA help to distinguish genetic factors from environmen ones when studying the effects of living space? ( 7 point) By obsenving changes in retired astronauts over a period of ten years. By running experiments on astronauts that were in space for over a year. By analvaing changes in one twin on Earth and the other in space. By introducing animals and other organisms that could be studied in spaca.

NASA leveraged the unique environment of space to conduct groundbreaking research that could tease apart the genetic factors from environmental influences. By analyzing the effects on identical twins, such as Scott and Mark Kelly, who were subjects in a remarkable study where one twin spent an entire year in space while the other remained on Earth, researchers gathered invaluable data on how space travel affects human physiology and genetics, shining a light on the interplay between genetics and environment. This innovative approach not only advanced our understanding of human biology but also produced vital insights for future long-duration space missions, like those to Mars. By determining how factors like microgravity and cosmic radiation impact health, scientists can devise countermeasures to keep astronauts safe and sound during their interplanetary adventures. The study ultimately bolsters our knowledge of space travel and its implications for both astronauts and future generations in understanding human adaptation.