Movies and multimedia presentations are substituted for dissection. Some find these rather gross, but they are nothing like the gross scenes in movies or on TV that I am certain you see. If you are really afraid of seeing pictures of dissected animals, take Botany 1 . What do I have to do to get an A in the class. This is explained in the syllabus.
Science is easy except for the terms.
Science classes are a little like language classes where you learn a new list of words for communication. You continue to use the previous terms material that you learn as the session progresses. So learning botany is a building process that requires you to study after class. You must know the material that has been covered to be able to function in the next class. If you keep up, you have an A without that final cram.