Generally speaking, in US public and private schools below the college level.... If the the dissection is in a course the student is required to take, the student does not have to take part in dissection. The student does not have to prove any 'official' moral or religious reason. Usually tho the student is required to learn the knowledge in some other way, "the information WILL be on the test." The student can not be required to watch an actual or recorded dissection, tho for some students that is an acceptable alternative. Other students learn the information from a model( 3-D, computer, film overlays, books, etc.) There aren't many exceptions to that exemption in required courses. ( And nowadays there aren't many required couses that require dissection. In my day we had to take three science courses, Chemistry, Biology, and Physics. Many schools now only require one of the three. We dissected a frog, we wanted to split an atom in Physics but they wouldn't let us, not even in Advanced, of which I also took all three sciences, we dissected a fetal pig, in Bio. II.) In elective courses, advanced, or honors courses a student is usually required to demonstrate a previously held moral conviction against taking part in the dissection. If the student was not informed that dissection was a part of the course before enrolling, participation is usually not required.( There are of course some exceptions to the requirment or exemption. At the college level things are different, Biology is rarely a REQUIRED course and a student is expected to have read the syllabus for the course before enrolling. In degree programs where Biology is required, the knowledge gained from the actual dissection is generally considered to be vital to the degree. If your local school trys to force you to dissect an animal, chances are the state has a policy prohibiting them from doing so. There is plenty of legal precedent, a local vegan may be able to refer you to a local lawyer who will handle the case pro bono, well pro stemo mebbee, anti-dissectors are prolly anti-bone too. If ya gotta take the course and don't wanta cut up froggy ya don't gotta, and if gotta cut up froggy you don't wanta take the course.

Yes, many schools now have digital programs in which you can disect an animal without there actually having o be one....but if you just dont like the sight in general, you have every right to refuse. Schools are much more understanding than you think, for each situations different stipulations can be figured out.

Yes

All students have the right to refuse. However, and to quote one of the great analytical academic minds of our age: Shrek, "...what [they] lack, is the capacity."

High school yes! College no, unless the professor feels like allowing humane alternatives.

Yes. In high school, they have computer program alternatives. In college, just don't take that class.

Yes, all students have the right to refuse dissection of animals. Listen to Alicia Silverstone's advice in the video.