Why did some states choose unicameral legislators and some choose bicameral legislators?

These are the House of Representatives (the House) and the Senate. In creating this bicameral legislature, the framers of the United States Constitution were trying to ensure fair representation for each state. ... The bicameral system also helped to maintain a balance of power in government.

I don't know if this helped at all, but I hope it did. c;

couples could only have one child to reduce the population growth.