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  1. Noor Ahmad

    A level Biology: Post your doubts here!

    Yes that's right! Thank you! but if the plant tissue doesn't lose nor gain water how will it get damaged and release the pigment? (in the question,the steps)
  2. Noor Ahmad

    A level Biology: Post your doubts here!

    Question 1b (ii) what is meant by estimate the water potential of the plant? http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_s11_qp_52.pdf
  3. Noor Ahmad

    A level Biology: Post your doubts here!

    What does the rf value say about solubility and the distance travelled? Is it correct that the greater the rf value the greater the distance travelled?
  4. Noor Ahmad

    A level Biology: Post your doubts here!

    how can sodium thiosulphate be used to detect the presence of starch?
  5. Noor Ahmad

    A level Biology: Post your doubts here!

    but...how do we know if the data is continous/normal?
  6. Noor Ahmad

    A level Biology: Post your doubts here!

  7. Noor Ahmad

    A level Biology: Post your doubts here!

    When is chi-square test used and when is t-test used?
  8. Noor Ahmad

    A level Biology: Post your doubts here!

    THANK YOUU!
  9. Noor Ahmad

    A level Biology: Post your doubts here!

    Thank youu!
  10. Noor Ahmad

    *Biology Paper 5 tips*

    question 3 b (iv) how do we find the number of degrees of freedom? http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_s09_qp_5.pdf
  11. Noor Ahmad

    A level Biology: Post your doubts here!

    Question 3b (iv) How do we find the number of degrees of freedom? http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_s09_qp_5.pdf
  12. Noor Ahmad

    YESS, i got 100 point something! I don't get the same value they mentioned!

    YESS, i got 100 point something! I don't get the same value they mentioned!
  13. Noor Ahmad

    A level Biology: Post your doubts here!

    question 1b (i) how do we know where the dye has reached in the shoot before cutting sections? Is the dye visible? http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_s09_qp_5.pdf
  14. Noor Ahmad

    oh haha okay XD Maybe you haven't recognized my presence,since i haven't been really active before

    oh haha okay XD Maybe you haven't recognized my presence,since i haven't been really active before
  15. Noor Ahmad

    Ahahaha, what's xpc (A) ? Too little do i know :c Nah,it's alright:D

    Ahahaha, what's xpc (A) ? Too little do i know :c Nah,it's alright:D
  16. Noor Ahmad

    Whaaat? :o

    Whaaat? :o
  17. Noor Ahmad

    alhamdulallah

    alhamdulallah
  18. Noor Ahmad

    It is mentioned in the examiners report! the examiners report says "Students failed to recognize...

    It is mentioned in the examiners report! the examiners report says "Students failed to recognize that the t test was done for the tubule diameter and not the lumen diameter." Now how do we find out that the t-test was done for the tubule diameter.
  19. Noor Ahmad

    i got 7A*'s and 1A.The A was in english XD

    i got 7A*'s and 1A.The A was in english XD
  20. Noor Ahmad

    no Problem XD

    no Problem XD
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