There is plenty of research that shows a relationship between stress levels and heart-damaging symptoms, such as high blood pressure and enlargement of the heart. It is possible, however, that some third factor may be responsible for both increases in stress as well as increases in heart-related symptoms. This fact utilizes which critical thinking concept

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.

a would be the answer

answer; validity;

answer; apache