15. The author includes the fact that medical expenses are the leading cause of bankruptcy to illustrate bankruptcy is a serious problem in the United States.

paying for health care can be
very difficult for families.

many people don't have access to health care.

paying for health care can be  very difficult for families.

Explanation:

In stating that medical expenses were the leading cause of bankruptcy, the author is showing that paying these expenses takes such a toll on a person's resources that they can lose all they have and file for bankruptcy.

It is very difficult therefore, for some families to pay for health care because if doing so is so expensive that it causes bankruptcies, it only makes sense that these expenses are very taxing on families.

answer; ///first blank (50) fellowships points; second blank; // (5 year);

creating amino acids is the answer