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8 Marker Organisms survive only in a narrow temperature range (Examples) Australian endotherm: Example + adaptation Autralian endotherm: example + adaptation Australian plants: increase temperature = increase transpiration = decrease water = death Enzymes (function)...

I've lost 1 in multiple choice. Probably lost 2 in the meiosis question but if i'm lucky 1. Probably lost 2 in experiment question: I forgot safety and made up a poor experiment So should be 90+ raw

I'm glad I did a few past papers, otherwise that sources question would've completely annihiliated me. i) Began with textbook for background. Internet to search for more specific information on transgenic technology. Observed a variety of websites ranging from wikipedia, government websites and...

For the 7 marker I wrote about the farming of atlantic salmon and something about pharmaceuticals from alga. The wrote some advantages and disadvantages, i wrote a hell of a lot of stuff on it, but i was all probably waffle. Sucks to be the marker. I wrote in a way, so its difficult to decipher

I found the majority of the paper fairly easy though there were a few tricky questions. I have never ever got a parametric question correct and never will

That exam was really easy... I fucked up question 1 though and that meiosis question i had no idea so i wrote random crossing over of chromosomes.

1. D (substrate is the reactant) 2. B (it just is) 3. A (its not a phloem so its xylem) 4. C (prevent it from entering area) 5. B (dependent variable is the one which is measured) 6. B (it just is) 7. D (it just is) 8. D (Koch's observation was which pathogen caused a...

Post up answers to the relevant question and if possible show working

Re: General Thoughts - Maths Extension 2 I agree, the exam wasn't overly too difficult although there were a couple of questions which I couldn't do. I think this is how my exam will turn out Question 1: 13/15 Question 2: 11/15 Question 3: 15/15 Question 4: 15/15 Question 5: 10/15 Question 6...

What sort of things should I have written for the 6 mark question? It was so badly worded, I didn't know whether to write about the history of shipwrecks or not.

I hated that flame test question: i wrote it wasn't suitable because it is used to identify cations, sodium carbonate will be distinguishable as is barium nitrate though lead nitrate and HCl would be unidentifiable, hence wouldn't be suitable as the only method used.

NaHCO3 is definitely not a buffer buffer is a solution containing equimolar amounts of a weak acid and its conjugate base, that is able to maintain a constant pH when large amounts of acid or base are added. Amphiprotic: a substance that can act as a bronsted lowry acid (i.e proton donor) and...

Did anyone label the y-axis or give the graph a title and put the units on I estimated it to 1260kJ/mol b) incomplete combustion

Sorry to burst the bubble but I think the dilution question was c) It asks how much needs to be ADDED which is 810ml since we already have 90ml Not the final volume which was 900ml.

Yes you probably will be penalised for forgetting to put in states- but really depends on marking criteria

1. Sodium Carbonate 2. HCl 3. Lead nitrate 4. Barium nitrate 1. Is sodium carbonate because all PbCO3 and BaCO3 give precipitates 2. HCl because only reaction with 1. to give bubbles (CO2) 3. Pb(NO3)2 because lead reacts with the HCl to produce a white precipitate. Ba(NO3)2 does not...

I wrote free chlorine radical as an initiator because catalysts don't participate in reactions. For the calculations: Sulfur dioxide i got somewhere around 2.4L Chlorine i put down 1.81 x 10^(4) (3s.f) KOH i put down 6 ml Did anyone else forget to name and draw structural formula for water

How did everyone find it? Easier/Harder than expected? I found it fairly easy

Silver Button Cell Silver should be recycled (because its expensive) Silver is heavy metal damages the environment Alkaline leakages