Why did the Constitutional Convention of 1787 agreed to create a bicameral legislature?

The framers agreed to create the United States Senate and House of Representatives as a compromise. During the Constitutional Convention, framers disagreed on whether or not the legislative branch of government should represent the states equally or based on population. As such, the Senate has an equal number of 2 representatives for each state, and the House of Representatives has a certain number of representatives for each state depending on population.