To shortly answer your question, an ethic community is a community of people who relate to each other in terms of culture, traditions, and overall ethnicities. An example of an ethnic community (I am speaking on myself) would be Juneteenth. In no way do I mean offense, it is just a mere example. If you need better understanding, let me know and I will gladly assist you.
Answer: B.otoliths
Correct Question: The brain's inexperience in interpreting messages from the weightless otoliths is the cause of the space sickness commonly experienced by two-thirds of all space travelers.
Explanation: The otolith is a part of the inner ear in vertebrates. This structure is responsible for directing hair cells towards the direction of gravity which in turn ensures balance. It also serves as a gauge to understand information about a person’s environment. When in space, and as the gravity changes to weightlessness, the lack of a direction of gravity affects the otolith, giving a human a lack of balance and inducing motion sickness symptoms.
