, take 2- 1
2-2
2-3
4- 1
4-2
4-4
4-5
There are 2 compulsory physics books and 3- 1, 3-2, 3-4 and 3-5 elective courses.
There are 2 compulsory chemistry books, 1, 4 and 5 are optional.
There are 3 required biology books, 1 and 3 are optional courses.