If you pick a school for Marine Bio, be sure to ask where recent grads have gone. You probably have to ask the department, not admissions. If you like what you see, you should be able to do well there if you do your part. If not, I’d keep looking. Some schools seem to simply do better getting their graduates jobs or into grad schools with this major.
You can do the same with VT or ODU, of course. Just make a note to yourself that many students with a Bio major don’t necessarily want your track, so it’s ok if there’s only a couple who go on doing what you’d like to do vs several. If there are none in the past few years, it would still be a caution flag for me.
ps VT alum here and really enjoyed the school(!), but not a Bio major (Physics/Psychology).