The era before the Mesozoic Era is the
Era

The Paleozoic Era

Explanation:

Phanerozoic Eon

Explanation:

it provided for selection of government employees through competitive examinations. it also made it unlawful to fire or demote covered employees for political reasons or to require them to give political service or payment, and it set up a civil service commission to enforce the law.

explanation:

i believe he was the 5th king of uruk. so c