Should I watch all the Khan academy physiology videos

I'm doing BR bio and missing a majority of the questions. When I say a majority, I mean I'm only getting 1-2 questions correct per passage. I honestly don't remember all the specific details required to answer the questions. Should I spend time watching the khan academy physiology videos to try and relearn the material? It will probably take a very long amount of time.


I did these passages back when I took physiology last spring, and I was able to do very well on them. But all that...

Should I watch all the Khan academy physiology videos