Answer:
This means that marriage and reproduction take place within the group, leading to decreased genetic diversity due to a lack of admixture.
Explanation:
Early alzheimer’s disease is associated with the condition
that George was born with called the trisomy 21. The trisomy 21 or also known
as the down syndrome causes an individual to develop physical growth delays and
causes a person to exhibit intellectual disability that could either be mild or
moderate.
B, because this is answer has nothing to do with American music.
Answer:
I don't think anyone is going to help so...
Explanation: