I thought it was fucking ridiculous. I was aiming for an A+ and I'll be lucky to get a C. I said an allergic response for the ivy which is wrong! and since when did we learn about placebos? and there was no experimental design! And I found all of the diagrams reallly difficult to understand. I found 2006 - 2010 easy, so I was like ok, I can do this. But it was really unfair.
why is allergic response wrong?
I think because poison ivy isn't an allergen... it
is harmful, and allergens are usually harmless but the body just overreacts. I don't think the question asked if it was or wasn't though...

I didn't say one way or the other I just described the histamine-mast cell-IgE response.