Defense Against Disease (IB Bio SL)

[@martinalopez6271]

"winner winner chicken dinner" sir I'm- you're making it fun to study for my ib exams 😭❤️

[@racheldarmawangsa9589]

You're so helpful. Thank you Mr. Lee!

[@hinatananan2416]

loooooooool winner winner chicken dinner

[@sabrinatischhauser9768]

You are so awesome!

[@andreaschindler2328]

Thank you so much ! helps so much

[@domifablet9595]

SOS UN IDOLO

[@ameliafarrant7943]

YOU ARE AMAZING

[@paulkoster8385]

Do you have any higher level notes on this part of the ib course?

[@misterleescience]

Yes - the whole syllabus should be completed. Just do a search for what you're looking for through the smaller search dialog box towards the top right of my videos.

[@rcyrsn6546]

im failing help

[@chloegemayel4247]

i can relate

[@lfcrags9715]

Hello sir I have a question I would like to ask

[@lfcrags9715]

@William Cook omg I was 13 then. This sparked my interest to become a medical student. Wowo

[@raykuo5165]

how can u even know winner winner chicken dinner when PUBG was not even out released?

[@saturn-pu1oj]

lmao the saying isnt from pubg

[@raykuo5165]

@@saturn-pu1oj I even forgot why I commented this, sorry I realized this afterward lol

[@lfcrags9715]

Is this GCSE

[@sharonsun5034]

No this is for the International baccalaureate. A good youtube chanel for IGCSE/GCSE is Science with Hazel.