@3scoutsmom Each school can decide what credit they want to give for any AP or want to accept any CLEP. So it is true that OU decided to give credit for Biology lab for AP Biology but decided not to give lab for Physics. Hence my D has registered this fall just Physics lab for 1 credit (since that is required for her pre-med).
My understanding adviser override the Degree Navigator in situations where higher level course can meet the requirement. It is very much needed in courses like Stats (where OU has so many variations close 10-15 courses) with a subject twist like Econ, Biol, Soc, Math, Psy. She needs to take Bio 2913 (stat) but that is full so she registered for Math 4753. But Math 4753 accepted in Pre-med where as for Bio Minor it says either Bio 2913 or Bio 4913. So we need to reach out to Adviser to accept Math 4753 for Bio 4913. All are nothing but higher level stats.