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  1. C

    only got d in biology a2

    but i got an a in chem... wt a disaster
  2. C

    only got d in biology a2

    so sad,,, could anybody give me an suggestions
  3. C

    about p5 of chemistry

    genius zohaib, where are you? i need your help
  4. C

    about p5 of chemistry

    i have no idea what should i write in the design experiment part, can someone help me?
  5. C

    question about isolating mechanism

    i use the Mary Jones Biology book, i think they did not mention about the isolating mechanisn, or they use another word instead of isolating mechanism. and for arhama, is allopatric and sympatric mechanism already a part of isolating mechanism?
  6. C

    question about isolating mechanism

    hey,,, i know there are many genius in here,,, come on help me out
  7. C

    question about isolating mechanism

    i have no idea about this topic, can someone tell me something about it?
  8. C

    about bio s07 mj p5 question 1

    it makes sense, but why?
  9. C

    about bio s07 mj p5 question 1

    In the 1(a)(iv), the question have been ask what the standard deviation tells you about this investigation. the mean is 5.42, and the standard deviation is 1.15. If we do it according to the book ,then the answer is 5.42+- (1.15 x 2) which is 5.42+-2.30. but the mark scheme saids the answer is...
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