Give me an example of how body systems work when you race
your friend to the store

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:

to act quickly in times of danger to the united states

because you have to act quickly if you want to live/survive.