A powerful committee of the us senate charged with finding ways to raise federal revenues is the "Ways and Means Committee". This committee is usually made up of both Democrats and Republicans.
I think it would be to ensure that no branch of government became too powerful.
often influence traits independently of genes. But not always. Sometimes the environment changes a gene—either its DNA sequence or its activity level. Either of these effects can change the proteins that are made from a gene, which in turn affects traits.
baron de Montesquieu admired a mixed government due to the division of power between the various divisions. He admired governments with the monarch as the head and a body representing the people that also acted to check the powers of the monarch to avoid abuse