I've been thinking a lot about my chances of getting into dental school lately and have found that I really need to step it up this year. I am currently a junior and am a biology major. I know I have to participate in a lot of extracurricular activities this year because I really did not take it seriously my first 2 years. Does it look bad to have most of them in 1 year if I plan on applying next summer? Also, during freshman year I started to take physics and I am horrible at physics. I only had 15 hours and if I dropped it after the first test, I would have only had 11 hours and not have been a full-time student so I changed it to credit only (S/U). Because I was going to have to take the class over, I just did not do anything which was a horrible mistake. Now I have an U (unsatisfactory) on my transcript next to physics. I am retaking it this year and will probably make an A or B+. My overall and science gpa other than this is still good: 3.87/3.9. How bad will these two things look? Thank you for your help. I live in NC and hope to get into UNC or Maryland or something of the sort.