Has anyone taken Intro to Biology+Lab?

I was wondering if Lab and Lecture go hand in hand because I signed up for a Lecture and was told to do a Lab but my Lab is before my Lecture. Does the order matter? I will have the same professor. I emailed the prof but I still have no reply.
Thanks

If the registrar scheduled the lab before the lecture, then clearly the department does not believe that the lecture is critical to doing the lab. Without seeing your syllabus, nobody here can give a better answer.