The answer is A for question 9...
For the prac, could i have just said "place a plant inside with limited sunlight, and then another one outside..."
and 8 marks for prions, viruses...BULLSHIT
http://oi49.tinypic.com/anjvao.jpg
Question is from 2u hsc 2011, but the solutions that they gave confused me,
can i get some help please?
Thanks in advance :)