The submission should have been in an MS word file, as per the instructions.
You have a number of citation errors - it should always be author and date, with page number included if it is a direct quote. There are a number of places where it appears you are paraphrasing or summarizing information from a source but there is no citation. There are also many sentences that are awkwardly worded and it makes the writing difficult to understand and follow.
CP answer - why the focus on school punishment? This was not discussed in the course materials, as the focus in this class is on family relationships. Many of your sources and claims are based upon research in a different setting and not appropriate for this answer. Specifically - "caning" (not "canning") should not be used to refer to normative parental corporal punishment, none of the research literature uses this term. The argument about which side you support is all opinion - this should be based on evidence from research. It also refers to school punishment and not parental punishment.
I commend you for taking on the biology question - I think it was more difficult than some of the others. However, your answer really suffers from a lack of organization and clarity. You are referencing some valid points, but without any clear flow from beginning to end. What about the Benson reading? This was the main source for this module and is not referenced at all.
You do a nice job of introducing your last answer. Overall it is well-written and organized and you do a good job of summarizing both perspectives, but the description of the theories lacks detail. What is the point of the entire section on "child parenting and conduct disorder"? This is not tied to a particular theory at all. You also need a stronger argument for which one is best that is supported by evidence - this paragraph is all opinion. There is one reference but it is not clear how this supports your argument.