Your classes in Middle School will have little affect on your ability to become a vet. Get good grades in Middle School and High School so that you can get into a good college. Then take a pre-med or pre-vet major and hope you can get into Vet school, which is very hard to do, even harder then medical school.
You dont have to worry about taking any classes to be a lawyer in middle school,you need to wait until high school.
Drama
Answer: you need to take zoology in high school if you want to become a zoologist :)
you need to pass all the classes even foods class
you need to take every literature classes writting and arithmacy
science
You need to take Invesments
all of them
No high school classes, other then your core classes (math, reading, etc.) are required for a profession after high school
a lot
take as many advanced math classes in high school, You also need math through calculus
It depends on the school and state in which you are taking the classes. You would need to speak to a counselor so they can help you figure out what to do.