I've been thinking about going back to school for my bachelor's degree, and undergrad academic degree which takes 3-7 years.
That's exciting!  What kind of degree could you get?
There are so many options!  The bachelor's degree is the most common undergraduate degree.
What kind of pre-requisites do you need?  
That really depends on what you want to do.  For instance, if you want to go to a medical school for a degree for physicians, you could do science based courses.
Does it vary depending on the country you are going to school in?
Yes, for example, some countries use qualification frameworks, and a bachelor's degree could be qualified differently.
That's really interesting.  What are the other types of undergraduate degrees?
Undergraduate education
Undergraduate education is education conducted after secondary education and prior to post-graduate education. It typically includes all the academic programs up to the level of a bachelor's degree. For example, in the United States, an entry level university student is known as an undergraduate, while students of higher degrees are known as graduates. In some other educational systems, undergraduate education is post-secondary education up to the level of a master's degree; this is the case for some science courses in Britain and some
advised on the city, state and federal levels on family policy and school reform. He also operates the Harvard University "Making Caring Common" Project which advocates kind manners in children.
Biography.
Weissbourd received his bachelor's degree from Stanford University in 1979, and his Ed.D. degree from Harvard University in 1987.
Publications.
Publications Books.
"The Vulnerable Child: What Really Hurts America's Children and What We Can Do About It" (Addison-Wesley, 1996)
"The Parents