A Joint Committee, is the answer
The Virginia Plan (also known as the Randolph Plan, after its sponsor, or the Large-State Plan) was a proposal by Virginia delegates for a bicameral legislative branch. The plan was drafted by James Madison while he waited for a quorum to assemble at the Constitutional Convention of 1787.
Virginia's Plan was based on population. The larger states favored this plan because it would give them more representation in Congress.
Athens was a direct democracy in which citizens voted on laws themselves. There are similarities and differences between Athenian democracy and that of the United States. In a democracy, the citizens make decisions. But the difference between the democracy of Athens and U.S. democracy today is that in Athens the people directly made the laws themselves.