Your professor pairs a burger (prepared just as you like it) with a pink piece of paper. The smell of the burger makes you salivate and after several pairings the pink paper by itself is enough to make you salivate. Which term best describes the burger?

Why are committees necessary in congress?

What are the basic input of iron and steel industry

U.s. history i which statement is true? the missouri compromise ended slavery in the south. the compromise of 1850 eliminated slavery only in the south. the missouri compromise postponed the issue of slavery. the compromise of 1850 ended slavery in every region of the united states.