Variations in health outcomes between racial groups are most strongly tied to

Common ancestry

Explanation:

Variations in health outcomes between racial groups are most strongly tied to common ancestry.

The  reason behind this is that each racial group has a different ancestry and a different background. They come from different geographical regions with different cultures and traditions. Therefore every group has a set of health pointers that have evolved and showed themselves due to the variety of different aspects present only in their communities.

Therefore variations of health outcomes differ in each.

d.

thist title points out that you are explaining the nature of the u.s. government. it is the most specific. a representative government consists of a government where decisions are taken according to a voting system. the most essential aspect of a representative government is found in the different structures where voting rights are granted to different groups of people. for example, voting for governor, mayor, president, local police chief etc.

changes in factors like average income and preferences can cause an entire demand curve to shift right or left. this causes a higher or lower quantity to be demanded at a given price. demand curves relate the prices and quantities demanded assuming no other factors change. it is important for consumers to know this information, because it is crucial for them to know what they can afford and can't afford. i hope this .