Final answer:
Constitutional bodies in the United States do not share lifetime terms or universal executive power, but they are similar in that they are elected by the public and serve for fixed terms.
Step-by-step explanation:
Similarities Among Constitutional Bodies-
In examining the similarities among the constitutional bodies of the United States government, two notable similarities stand out. First, none of these bodies hold office for a lifetime term; rather, they serve for fixed terms, such as the four-year term for the Presidency or the six-year term for the Senate. Also, contrary to one of the options given, these bodies do not all possess executive power; instead, that power is specifically vested in the president and the governors at the federal and state levels, respectively.
The second similarity is that all members of these bodies, such as the President, Senators, and Governors, are elected by the public, demonstrating a foundational principle of democracy in a representative republic. The authority to interpret laws, while unique to the judiciary, is also critical in understanding how these bodies interact as checks and balances within the government system.