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Gah! You are my hero. Thank you so much for that. I will do this one. Just one question, what do you mean by 'choose your different pH levels'...where are my pH levels? x

Thanks so much guys. I'll use the liver. So i get water, pour levels of hydrogen peroxide in the water, meseaure the pH, then add it to the kidney? What will happen to the kidney? What reaction should I be looking for? Apologies for sounding slow, I'm just trying to make sure I really...

*I am thinking my enzyme will be amylase, and I will use human saliva for that. Would that be okay?

Hey guys, I do HSC Biology and am having trouble on this task The Task is: 'Identify data sources, plan, choose equipment and perform a first-hand investigation to test the effect a change in pH has on the activity of a named enzyme.' I'm terribly confused and not sure where to go. Would...

Choke - Chuck Palahniuk. My favourite book, not nessecarily for that reason, but it has many sex scenes, haha.

Hey guys, I'm kinda new year, long time lurker, n00b poster. I'm writing a report, and one of the questions is: Explain the types of 'rites of passage' in Spartan society. The only one I've got so far is : As another test of wills and strength, the Spartan boy was sent into the mountains at...