Biology Unit 2 does look pretty hard as it more application than anything and if you don't know Unit 1 very very well, you will find it even harder. I looked at the papers, Jan10 looks like an ok paper but Jun10 looks pretty demanding.
its true, well we know haemoglobin, dna, classification is a usual. i hope theres founder effect and honestly hope its like 52/85 for an A like last year. have you seen B4!!! 39/75 for an A*??? people must of messed up hard must be solid
B4 last Jan was a joke. Every question was unrelated to what the biology books taught. It was even in the news because so many people complained. I think that might be why they were really generous with the june retakes :P