The medulla oblongata on the base of our brain
Scientists do not necessarily follow a set order of steps; there are many different ways to approach a scientific investigation. However, when they do follow a set order of steps, it is because a methodical approach helps them to keep track of what they are doing, and because research may be more successful when it follows a logical sequence.
I think your missing a picture or further info. but american currency is USD ( united states dollar)
