How fast do U0 science courses fill up?

<p>I'm waiting on a verdict on whether I can take a course in a certain time period I want, and I need to register in the mean time.</p>

<p>I could register for the second best set of courses for me, but if the other course sections fill up too fast, and they approve my request, I won't be able to switch into the schedule I want (same courses just different time).</p>

<p>Similarly, if I pick the courses and times that allow for the perfect schedule, then they deny my request, and the other course sections are full what am I supposed to do? </p>

<p>I'm supposed to get a response tomorrow (that's what I was told on the phone), but I register tomorrow at 8:00am EST.</p>

<p>Do I even have to worry about courses filling up within a day for science?</p>

<p>Also, am I allowed to register for more than one lab section (it will only be for one day at the maximum) so that I can drop the labs that don't fit after finding out what I can take?</p>

<p>Courses fill up really quickly. Half of the courses I wanted to register for are already full. Mind you, I’m an arts student so a lot of the courses only offer one section per year.</p>