Asimilarity between the separation of powers, the system of checks and balances, and federalism is that they are all related exclusively to the federal government. are all ways that the constitution limits government power. each illustrate the idea of popular sovereignty. each serve to increase the power of the federal government.

The answer is: the similarity between the separation of powers, the system of check and balances, and federalism is that they are all ways in which the Constitution limits government power.

Explanation:

From the very beginning of the United States as an independent nation, the intention of the Founding Fathers, expressed in the Constitution of the land, was to establish a separation, a partition, of the power within the government, to prevent tyrannical rule. As such, they decided to adopt, and express it clearly in the Constitution, that the system of government which would be used, would be federalism, which in essence already establishes a division of power by distributing it between the federal and the state governments. Within this same system, the Constitution also foresaw a further division of the federal government´s control, by instituting the separation of powers, which meant that this attribute would be distributed equally between three different branches of government: executive, legislative and judicial. Furthermore, and to increase the debilitation of control of power in just one set of hands, the Constitution also instituted a system of check and balances, which means, that between the three brances of government, not one of them overshadows, or overpowers the other. The three have equal standing and must colaborate with one another in order to govern the land.