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  1. Ahmed Abdullah

    BIOLOGY PAPER 31 AND 1 DOUBTS!

    vitreous* humor is everything in between the lens and retina it has few cells and transparent so light can pass through. aqueous humor provides nutrition for the tissues
  2. Ahmed Abdullah

    BIOLOGY PAPER 31 AND 1 DOUBTS!

    21) As ribs starts to raise, volume of thorax increase, thus pressure will decrease. 31)As u see in the picture 2 rabbits are dark and 2 are white which means the ratio is 1:1. If we cross Rr and rr we will get this ratio 36)dont know how to explain this, just google condensation and u will get...
  3. Ahmed Abdullah

    PLZ HELP BIOLOGY FOR AS PAPER 1

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Biology (9700)/9700_w08_qp_1.pdf question 26 , why answer is D and not A and question 36 the answer is D but how come it increases resistance to antibiotics and its about malaria
  4. Ahmed Abdullah

    AS biology paper 31 (Practical)

    SO guys how was the exam easy or hard / btw sry for wrong prediction about the microscope exam
  5. Ahmed Abdullah

    AS BIOLOGY P-33

    food test for 31
  6. Ahmed Abdullah

    AS biology paper 31 (Practical)

    For microscope question revise this http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_s10_qp_31.pdf although iam still not sure
  7. Ahmed Abdullah

    AS biology paper 31 (Practical)

    I received a letter from someone saying that the microscopic question will be similar to this one question2 http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_s04_qp_3.pdf but iam still unsure
  8. Ahmed Abdullah

    AS biology paper 31 (Practical)

    this one is useful too + the one mentioned above http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_s04_qp_3.pdf
  9. Ahmed Abdullah

    AS biology paper 31 (Practical)

    we dont need jokers like u here, so go play somewhere else
  10. Ahmed Abdullah

    AS biology paper 31 (Practical)

    really thanks a lot u saved my life
  11. Ahmed Abdullah

    AS biology paper 31 (Practical)

    Any idea about the topic that will come ................................. PLZ share if u have any informtion
  12. Ahmed Abdullah

    AS BIOLOGY P-33

    loooooooooooool look who is talking here , RIP english :sneaky:
  13. Ahmed Abdullah

    AS BIOLOGY P-33

    iam very bad practicals (n) i think i will completly fail :censored:
  14. Ahmed Abdullah

    AS BIOLOGY P-33

    any informaton for bio practical s1
  15. Ahmed Abdullah

    AS BIO AND CHEMISTRY NOTES NEEDED !!

    but overall thanks for sharing your notes
  16. Ahmed Abdullah

    AS BIO AND CHEMISTRY NOTES NEEDED !!

    there are some small mistakes in this notes for eg (its written that elastic fibres stretches during inhalation and expiration) ......... correction : It stretches during inhalation increasing the surface area and recoils during expiration to force air out.
  17. Ahmed Abdullah

    Biology AS help

    question 1) factors that determine the distribution of malaria worldwide? question 2) How is Tuberculosis and HIV related ?
  18. Ahmed Abdullah

    BIO PPR 1 V1 <3

    i know the fish was c and heart was D .......... i got them right ........................................... iam only not sure about the oxygen and co2 part
  19. Ahmed Abdullah

    BIO PPR 1 V1 <3

    As i know that frogs can breath through their skin ... in other words oxygen pass to their skin ............. however iam not sure weather CO2 pass from their skin to water.
  20. Ahmed Abdullah

    BIO PPR 1 V1 <3

    ] It was D .......... iam sure of it ........ i even checked my answer with my teacher and he said it was right
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