You do know wiki is authored by anyone who takes the time to write something, and by no means is accurate, right?
I not only guarantee these terms are in your text book, I would bet that your professor lectured about them. Not very often do teachers/professors ask you to write about stuff that has not been covered in class, or at least has some mention in the
required reading.
I doubt your going to get a lot of help asking these types of questions online either, mostly because the people who know the answers studied hard by READING THEIR TEXT BOOKS to learn them.
