Question

In March 2015, the American space program sent astronaut Scott Kelly to live on a space station for a whole year, where he will not feel gravity as the space station orbits Earth. Scott Kelly’s twin brother, Mark, stayed at home. Scientists then plan to study the twins’ body chemistry, genetics, sight, and other data. This way, scientists can find out how living with and without gravity affects two identical people. What will most likely be a limitation for other scientists trying to recreate this study? There are ethical controversies over testing human subjects. There are probably very few astronauts with twin siblings. There are too many complexities involved in studying body chemistry, genetics, and sight. There is probably not enough technology to keep someone in space for an entire year.

Answer 1

The correct answer is that there are probably very few astronauts with twin siblings. 

We have to take into consideration that astronauts are a very small group of people and that there is only a small chance that one of them has an identical twin. Although the tests can be hard to do and categorize these kinds of tests and measures are not unethical as long the scientists have the person's permission. Currently, we possess the technology and resources to keep a person in space for a year, but it will be really hard to find more astronauts that have identical twins.

Answer 2

Answer:

Your answer would be There are probably very few astronauts with twin siblings.

Your welcome  e d g e n u i t y  peeps! ♥