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You can see a cross section BY cutting a transversal cut. A longitudinal cut is cut lengthways, hence LONGitudinal. A transverse cut is across. So, on a celery, it would be perpendicular to the stalk of the celery. :)

The optimum temp. was between 35-40 degrees Celsius because rennin operates in the stomach, hence body temperature. The optimum pH was acidic, because the stomach has an acidic environment An increase in substrate concentration caused an increase in enzyme activity because it got closer to...

Around 96...

If you can cope, sure. As emamab said, just go casual and during your half-yearlies, trials, HSC, ask for a break. Plus, it makes you more independent as you are exposed to the "real world" and it can be your "break-time" away from studying.

+1 There are pros and cons of both. If you think that you can cope with 12 units, go for it! If it's becoming too much, don't be afraid to drop to 10. Is there any chance that you can drop to 11 units? Don't not drop to 10 units because of the mentality, "I'm gonna stuff up if I only have 10...

Hello! Carpe Diem. Adv. English, Bio, Business Studies, Economics, Maths, SOR(1). I will be happy with 90, but I will be EXTREMELY happy with 95+ :D

My books are mainly based on how interesting the plot was rather than whether it was actually a *good* book. Don't Call Me Ishmael Series - Michael G.B Shug - Jenny Han Henderson Boys - ? CHERUB - ? Alpha Force - Chris Ryan Inheritance Cycle - Christopher Paolini anything by Agatha Christie...

I know someone who does your combo! :D

Adv. English: Belonging Biology: 2.5 Business: HRM Economics: Global Economy (nearly done) Maths: Trig. functions SOR(1): Finished Aboriginal Spirituality

I do prefer the Macquarie for Bio. I also like the Cambridge for Bio. It is a lot more concise than Macquarie, but that's what I liked about it. I guess Macquarie is easier to understand, but I guess to each their own.

For the pH part, we had 3 test tubes. One was the control, one had 3-4 drops of vinegar added to it, and one had 1/2 tsp of bicarb soda added to it.

+1 what jaymay said. I'm not 100% sure, but according to 'Angels and Demons', they were scientists that were driven "underground" by the opposing nature of society... or something like that.

Yeah. My school cert was WAY easier than my trials. I think its because they trials are past papers, and the papers back then were quite hard.

Ross Gittens' "Gitten's Guide to Economics" is a good book if you're new to economics and you want to understand the basics. He writes in a very easy-to-understand way. Enjoy!

Angels and Demons - Dan Brown :)

Is history extension offered to all students? If not, the I THINK (not sure) Eco. would scale the highest out of the HSIE subjects that is offered to all students.

The point P(2ap, ap^2) lies on the parabola x^2 = 4ay. I found that the equation of the tangent was y-px+ap^2=0. b) Find the point R where this tangent meets the directrix. Do I need to find the point of intersection? :S Please show your working out. Thank you :)

I understand you want to do well in your SC, so, for science, I just basically went over past papers and saw that they always have a certain type of question. Eg. about technology. See if you can see a pattern and study for those. I also wrote notes, but it depends on what type of learner you...

Thank you so much! I understand it now :)

Please show your working out!. Thank you :D * <= in the equation is less than or equal to