M

marine

girlmeetsvce i think because in the question stem it's comparing non-caffeine drinkers with caffeine drinkers. also in the stem it's given the number of caffeine or non-caffeine drinkers rather than the number of males and females that participated in the experiment. it doesn't give enough detail about the gender aspect and because it's written more as a side note you could say gender is an extraneous variable.

can someone explain why the answer is a for q28 on the 2023 vcaa exam? thanks!

Researchers conducted an experiment to investigate the influence of the chemical theophylline on the circadian
rhythm of rats in dark conditions. Theophylline is found naturally in brewed tea and acts to stimulate central
nervous system activity. The study was conducted on 10 rats, which were administered a single theophylline dose
(0.5 mg/kg) one hour before they fell asleep, and were then monitored for two days using an electroencephalograph
(EEG) with no access to natural or artificial light. Three major states of consciousness were analysed during the
48 hours of observation: waking, NREM sleep and REM sleep.
Question 28
The use of a control group in this study would require a group of rats that
A. receives 0.5 mg/kg of a salt solution.
B. is exposed to full light conditions for one of the two days.
C. is sleep-deprived for the two days following administration of theophylline.
D. is a different species of rats, genetically modified to not digest theophylline.

FH thank you

when is it ok to say someones got partial sleep deprivation?

whats the difference between decay and displacement?

if your teacher is saying that you're writing too much you can use dot points instead of paragraphs so its more clear where all the key words are
idk about needing to be rank one in everything to get a good study score though, if you and your cohort all do well the exam then your sac scores will be brought up, remember that everything is moderated in the end! also this is the first sac so there's plenty of time for your ranking to be brought up ) hope that helps

does anyone have any practice sacs for unit 3 aos1?

omg thank you so much! I just emailed u

does anyone have practice sacs/ resources for psych? if so please send that'll be so good!

TSE-Tuition would it be a creative piece? also do we need to reference mentor texts in the piece?

hey! im really sorry but i lost my practice sacs for this aos but I have this google drive with a bunch of quizzes, worksheets etc
[https://drive.google.com/drive/folders/1D81lvrkv2RYsF1TfrtwXznD80_qSupJe?usp=sharing](https://)
hopefully it helps! lmk if you can't open it/ need access

does anyone have the answers for the jacaranda 8th edition 3/4 textbook? if u do could u send them that'll be amazing ((:

GeorgeOfTheJungle for question 2 did you mean "ways of using fossil and DNA evidence (mtDNA and whole genomes) to explain the migration
of modern human populations around the world, including the migration of Aboriginal and
Torres Strait Islander populations and their connection to Country and Place."?
i think this is talking about the important place in Australia for Aboriginal and Torre Strait Islanders eg Lake Mungo as a sign of cultural evolution with the burial site and devils lair with bone points and bead artefacts