Changing majors from Engineering to Zoology NCSU.

I am applying to North Carolina State University and wanted to know how easy it would be to change majors from Electrical Engineering to Zoology. I am stuck between choosing what I want to major in, but I know it is between engineering and a biology course. All of the other universities I have visited, Engineering requires certain classes in Freshman year, and if I switched say Sophomore year, I would fall behind causing me to be a year behind. So, I figured I would start with Engineering and change majors if needed. At NCSU how easy is it to switch between the College of Engineering to College of Sciences. For a zoology major, if I switch into it, would I miss classes causing me to fall behind like Engineering?