Sample answers AGGRESSION PSYA3 (4, 4+16, 8+16)

Hi guys,

I have just been writing up some answers for PSYA3 aggression.
There's;

a - 4 marker
Outline research into institutional aggression
a - 4 + 16
Outline and evaluate one social psychological theory of aggression
and a 8 + 16
Outline neural and/or hormonal mechanisms in aggression

All of which are pretty nasty questions. I've tried writing as much as i can, but I'm not convinced they are very good. And I'm really confused as to how to improve my answers. They are all attached in the document I've put in this thread. AO1 is highlighted GREEN and AO2 YELLOW.

I'm particularly stuck on cortisol - specifically the AO2 for it, I feel I've just thrown a study out and left it there with no purpose but have no idea how to elaborate/how it links.

If anyone can have a read and let me know thoughts that'd be so fab!!!

P.s sorry for bits that are badly worded I am tired haha.