Quick SAT II Question, Help? Am I screwed?

<p>Hey guys,</p>

<p>I'm an engineering major. Lowish GPA with upward trend and 780 on math 2, 33 ACT.</p>

<p>I'm applying to UCs, in which SAT 2's are optional. I've done math level 2, but not a science yet.</p>

<p>I signed up for SAT Bio M for this weekend but havent studied at all. If I feel that I absolutely blew it, I will cancel. If I only submit 1 subject test, Math 2, to UCs, will it look bad? Again, Im a computer engineering major.</p>

<p>However, if I feel that I did okay, I'll send in my score. Since it's so late, I'll have to send scores without even looking at them. If I score in the low-mid 600's, will the test actually detract from my application? Will it make them look down on me and harm my chances if I dont do well? Again, the test is optional.</p>

<p>I'm looking to get into:
UC Berk
Irvine
Santa Barbara
Davis
San Diego</p>

<p>PLEASE HELP GUYS!</p>