Can I get admitted to a UC if...?

I want to go to UC Santa Cruz and wanted to know if I could still get admitted with a D on my senior transcript. I'm currently a senior with a D in my AP Biology class. I signed up for that class because I wanted to and not because I needed another year of science. The a-g courses require 3 years of a laboratory science, of which I've already passed with a B or higher. So I wanted to know if I can still get admitted if I have a D on my official semester transcript given the fact that this is just an "extra" class. (this would be the first time i would have anything lower than a C on my official semester grades and have never had lower than a 3.33 GPA)

Thanks in advance!

PS I'm still trying to raise my grade to at least a C, but I just wanted to make sure I can still get admitted just in case