Explain how cannon and washburn's work established one factor that pushes or drives hunger?

Washburn established that stomach contractions happen when he felt hungry.

Explanation:

Washburn conducted an experimental work to establish one factor that  pushes or drives hunger. Washburn swallowed a balloon which was attached to a recording device. Then the balloon was inflated to fill the stomach and this resulted in stomach contractions. Then Washburn recorded the feeling of hunger using a key. This way it was established that  stomach contractions happen when someone feels hungry. This research was conducted in 1912.

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.

the values of the selma marchers was to bring   their ability to vote into law. mlk was not hat march, which was protesting toward lbj