Well if u repeat classes they calculate both of the grades into your gpa. So if U took A&P the first time and got a D and took it the second time and got a B, both the B and the D will be counted into your gpa.
Do NOT GIVE UP!! You can can do it just retake those classes. But the previous grades will be added to your gpa. When do u plan on applying? Also majority of ppl apply to the Baltimore campus so it is more competitive for that campus
If u don't mind me asking what's your gpa and keep in mind they factor in repeated classes. So if u repeated a class they'll factor both grades in your gpa.