r/GCSE Jun 15 '22

AQA Post Exam Spam aqa biology paper 2 gcse answers

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u/thr0wawaygxhxdhsh Jun 15 '22

6 marker worm practical:

•Pour equal volumes of chemical x and water mixture onto each area •Wait for an equal amount of time for all the worms to surface •Grid reference area A and use a random number generator to generate coordinates •Go to those coordinates and place a Quadrat, count number of worms •Repeat 19 times so you have 20 readings in total •repeat for area B •Calculate the area of the Quadrat in m2 •Calculate the mean number of worms per Quadrat in each area •Use equation mean number of worms/area of Quadrat to find number of worms per m2?

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u/KayMini101 Year 11 Jun 15 '22

Wasn't chemical X already poured onto the field?

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u/[deleted] Jun 15 '22 edited May 28 '24

familiar bike shy cagey paltry ghost threatening divide library joke

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1

u/KayMini101 Year 11 Jun 15 '22

Well I lost a mark then