The Top of the Continental Divide determines the flow's direction of a river.
Explanation:
The Continental Divide determines the flow's direction of a river as it separates the watersheds that drain into the Pacific Ocean from the rivers that drain into the Atlantic Ocean. In the United States, the West part of the Continental Divide makes the water flow towards the Pacific Ocean, while the East part makes the water flow towards the Mississippi River and the Gulf of Mexico.
eukaryote cells have a membrane -bound nucleus and prokaryote cells do not. the nucleus is where eukaryote ls store their genetic information and prokaryotes have no membrane bound organelles.