Respiration and RQ

[ErnaG84]

thank you I was going crazy trying to understand RQ

[10mrlegend]

You are legend! OMG i understood the RQ finally :D 

[fade2black1982]

Thanks for this man! :)

[jxxcolgan]

thanks. Really helpful :]

[blackayumi]

THANK YOU!!!!!

[EmilyLikesIceCream]

Thank you for the vids! MOST USEFUL :D

[GetUpYouLazyBear]

Thanks for making these vidoes. Keeps a bit of variety in my revision :)