Hey!
Sadly I'm only starting Mod 5 now so I don't have any notes to give but I highly
highly recommend the slides from the headstart lectures last October.
They can be found in the notes section or here:
https://atarnotes.com/note/lecture-slides-october-2018-4/I think the true emphasis on this module is understanding key processes and comparing them/ drawing links. That means a lot of the work will be done through practising exam style questions so I think it's fine if you have less notes.
I would definitely recommend hitting up a friend though to fill in the gaps or just go to the teacher. Also the syllabus is super easy to follow so you could use a textbook or the ATARNotes study guide (I have one and I couldn't recommend it enough) to fill the gaps.
Wishing you luck and no stress ! Luckily gaps in biology notes are easily filled and probably through filling the gaps you'll learn a lot :DDD
-Gracie