Using what you know about U. S. government, which of the following must be true?
The United States has only one elected leader the president.
Oligarchy is illegal in the United States.
The Declaration of Independence should be regularly updated.
U. S. representatives have a duty to represent the people.

There are traits like blood type and eye color, and others like speaking english or having a scar. what are the terms used to describe these different types of traits? how are each defined?

How did dynasties end and how did new ones start?

Dr. robbins wants to know if there are different opinions regarding the value of public school education between native americans who have at least one relative who attended indian boarding school and native americans who have no family experience with indian boarding school. dr. robbins contacts 35 native american participants in each group. he wants each group to include younger as well as older adults, and a mix of male and female participants. he asks each person to complete a survey about their attitudes toward public education. the design of this study is: