Answer:
longitudinal design
Explanation:
When Rowena was born, her parents agreed to allow her to participate in a research project that investigates the development of motor skills in children. Every year, Rowena's parents complete a survey answering questions about how Rowena's motor skills have changed. Rowena and her parents are participating in a study that uses a <u>longitudinal design</u>.
The three Egyptian kingdoms were the Old, the Middle, and the New kingdoms. The Old one was the time when the pharaohs were the kings of Egypt and they has the absolute rule over the land. They were able to build many great pyramids during this time. During the Middle kingdom, the Pharaohs had a stronger military power to make sure that enemies could not penetrate. It was also during this time that the arts and sciences became more developed. The New kingdom on the other hand, lead to the expansion of the country. The country became more open to the outside world and foreigners were able to enter. In the New Kingdom, the chariots were made and horses were trained specifically to pull the chariots. Bronze was also introduced and used to make weapons.
The correct answer is, Since 1860 two political parties, the Democrats and Republicans have dominated American politics.
